Failed to use 6439_Scaler-2.9.0.exe with audacity-win-3.6.1-64bit.exe

I tried another PC, still failed with Audacity. If I use 6439_Scaler-2.9.0.exe with audacity-win-3.6.1-64bit.exe . When I click Preview button on Scaler 2, Audacity will quit with the following information:

Operating system: Windows NT
10.0.19045 4780
CPU: amd64
family 6 model 142 stepping 12
8 CPUs

GPU: UNKNOWN

Crash reason: EXCEPTION_ACCESS_VIOLATION_WRITE
Crash address: 0x24
Process uptime: 93 seconds

Thread 0 (crashed)
0 ntdll.dll + 0x649f6
rax = 0x0000000000000000 rdx = 0x00000000fffffffa
rcx = 0x00000162ca7fa1b8 rbx = 0x00000162ca7fa1b8
rsi = 0x0000000000000000 rdi = 0x0000000000000000
rbp = 0x00000033c457d400 rsp = 0x00000033c457d1a0
r8 = 0x0000000000000000 r9 = 0x00000162ca7fa100
r10 = 0x0000000000000000 r11 = 0x0000000000000246
r12 = 0x0000000000000000 r13 = 0x00000033c46d0000
r14 = 0x0000000000000001 r15 = 0x0000000000000000
rip = 0x00007ff95cf149f6
Found by: given as instruction pointer in context

Stack contents:
 00000033c457d1a0 ff ff ff ff ff ff ff ff b8 a1 7f ca 62 01 00 00  ............b...
 00000033c457d1b0 f8 81 bd fc f8 7f 00 00                          ........        
Possible instruction pointers:

1 ScalerAudio2.vst3 + 0x2df81f8
rbp = 0x00000033c457d400 rsp = 0x00000033c457d1b8
rip = 0x00007ff8fcbd81f8
Found by: stack scanning

Stack contents:
 00000033c457d1b8 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 00000033c457d1c8 0c 01 00 00 32 00 00 00 50 d3 57 c4 33 00 00 00  ....2...P.W.3...
 00000033c457d1d8 d8 1a 37 fa f8 7f 00 00                          ..7.....        
Possible instruction pointers:

2 ScalerAudio2.vst3 + 0x591ad8
rbp = 0x00000033c457d400 rsp = 0x00000033c457d1e0
rip = 0x00007ff8fa371ad8
Found by: stack scanning

Stack contents:
 00000033c457d1e0 00 24 59 da 62 01 00 00 fa ff ff ff 33 00 00 00  .$Y.b.......3...
 00000033c457d1f0 00 00 6d c4 33 00 00 00 50 d3 57 c4 33 00 00 00  ..m.3...P.W.3...
 00000033c457d200 80 24 59 da 62 01 00 00 b6 45 ea f9 f8 7f 00 00  .$Y.b....E......
Possible instruction pointers:

3 ScalerAudio2.vst3 + 0xc45b6
rbp = 0x00000033c457d400 rsp = 0x00000033c457d210
rip = 0x00007ff8f9ea45b6
Found by: stack scanning

Stack contents:
 00000033c457d210 30 d2 57 c4 33 00 00 00 00 00 00 00 62 01 00 00  0.W.3.......b...
 00000033c457d220 10 d3 57 c4 33 00 00 00 f8 d2 57 c4 33 00 00 00  ..W.3.....W.3...
 00000033c457d230 b7 53 46 b7 8c 63 00 00 e8 03 00 00 bc 02 00 00  .SF..c..........
 00000033c457d240 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
 00000033c457d250 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................
 00000033c457d260 00 00 00 00 00 00 00 00 b8 a1 7f ca 62 01 00 00  ............b...
 00000033c457d270 00 d4 57 c4 33 00 00 00 b4 fc ed 5c f9 7f 00 00  ..W.3......\....
Possible instruction pointers:

4 ntdll.dll + 0x2fcb4
rbp = 0x00000033c457d400 rsp = 0x00000033c457d280
rip = 0x00007ff95cedfcb4
Found by: stack scanning

Stack contents:
 00000033c457d280 00 00 00 00 00 00 00 00 e0 d8 78 cb 62 01 00 00  ..........x.b...
 00000033c457d290 fa ff ff ff 00 00 00 00 b0 d3 57 c4 33 00 00 00  ..........W.3...
 00000033c457d2a0 00 00 00 00 00 00 00 00 70 ab 29 e1 62 01 00 00  ........p.).b...
 00000033c457d2b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 00000033c457d2c0 00 00 00 00 00 00 00 00 f0 9f 7f ca 62 01 00 00  ............b...
 00000033c457d2d0 10 d4 57 c4 33 00 00 00 e2 fa ed 5c f9 7f 00 00  ..W.3......\....
Possible instruction pointers:

5 ntdll.dll + 0x2fae2
rbp = 0x00000033c457d400 rsp = 0x00000033c457d2e0
rip = 0x00007ff95cedfae2
Found by: stack scanning

Stack contents:
 00000033c457d2e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 00000033c457d2f0 c0 32 8a da 62 01 00 00 e8 03 00 00 bc 02 00 00  .2..b...........
 00000033c457d300 c0 d3 57 c4 33 00 00 00 cc 61 3a fa f8 7f 00 00  ..W.3....a:.....
Possible instruction pointers:

6 ScalerAudio2.vst3 + 0x5c61cc
rbp = 0x00000033c457d400 rsp = 0x00000033c457d310
rip = 0x00007ff8fa3a61cc
Found by: stack scanning

Stack contents:
 00000033c457d310 0c 01 00 00 00 00 38 43 32 00 00 00 00 00 38 43  ......8C2.....8C
 00000033c457d320 60 a9 48 fa f8 7f 00 00                          `.H.....        
Possible instruction pointers:

7 ScalerAudio2.vst3 + 0x6aa960
rbp = 0x00000033c457d400 rsp = 0x00000033c457d328
rip = 0x00007ff8fa48a960
Found by: stack scanning

Stack contents:
 00000033c457d328 0b 00 00 00 00 00 00 00 0c 01 00 00 32 00 00 00  ............2...
 00000033c457d338 e8 03 00 00 bc 02 00 00 00 00 00 00 00 00 00 00  ................
 00000033c457d348 e8 03 00 00 bc 02 00 00 0c 01 00 00 32 00 00 00  ............2...
 00000033c457d358 e8 03 00 00 bc 02 00 00 00 00 00 00 00 00 f0 bf  ................
 00000033c457d368 00 00 00 00 00 00 00 00 b8 a1 7f ca 62 01 00 00  ............b...
 00000033c457d378 91 42 f7 f9 f8 7f 00 00                          .B......        
Possible instruction pointers:

8 ScalerAudio2.vst3 + 0x194291
rbp = 0x00000033c457d400 rsp = 0x00000033c457d380
rip = 0x00007ff8f9f74291
Found by: stack scanning

Stack contents:
 00000033c457d380 16 04 09 00 00 00 00 00 32 ca ef 5c f9 7f 00 00  ..	.....2..\....
Possible instruction pointers:

9 ntdll.dll + 0x4ca32
rbp = 0x00000033c457d400 rsp = 0x00000033c457d390
rip = 0x00007ff95cefca32
Found by: stack scanning

Stack contents:
 00000033c457d390 64 36 00 00 00 00 00 00 98 8e 31 fa f8 7f 00 00  d6........1.....
Possible instruction pointers:

10 ScalerAudio2.vst3 + 0x538e98
rbp = 0x00000033c457d400 rsp = 0x00000033c457d3a0
rip = 0x00007ff8fa318e98
Found by: stack scanning

Stack contents:
 00000033c457d3a0 00 00 00 00 00 00 00 00 cd e2 52 fa f8 7f 00 00  ..........R.....
Possible instruction pointers:

11 ScalerAudio2.vst3 + 0x74e2cd
rbp = 0x00000033c457d400 rsp = 0x00000033c457d3b0
rip = 0x00007ff8fa52e2cd
Found by: stack scanning

Stack contents:
 00000033c457d3b0 38 87 0b cb 62 01 00 00 ca 88 31 fa f8 7f 00 00  8...b.....1.....
Possible instruction pointers:

12 ScalerAudio2.vst3 + 0x5388ca
rbp = 0x00000033c457d400 rsp = 0x00000033c457d3c0
rip = 0x00007ff8fa3188ca
Found by: stack scanning

Stack contents:
 00000033c457d3c0 00 85 0b cb 62 01 00 00 42 54 ea f9 f8 7f 00 00  ....b...BT......
Possible instruction pointers:

13 ScalerAudio2.vst3 + 0xc5442
rbp = 0x00000033c457d400 rsp = 0x00000033c457d3d0
rip = 0x00007ff8f9ea5442
Found by: stack scanning

Stack contents:
 00000033c457d3d0 00 2f 90 c5 ee 22 00 00 b0 eb 76 cb 62 01 00 00  ./..."....v.b...
 00000033c457d3e0 38 87 0b cb 62 01 00 00 74 8d 31 fa f8 7f 00 00  8...b...t.1.....
Possible instruction pointers:

14 ScalerAudio2.vst3 + 0x538d74
rbp = 0x00000033c457d400 rsp = 0x00000033c457d3f0
rip = 0x00007ff8fa318d74
Found by: stack scanning

Stack contents:
 00000033c457d3f0 88 00 79 cb 62 01 00 00 00 00 00 00 bc 02 00 00  ..y.b...........
 00000033c457d400 98 00 79 cb 62 01 00 00 00 00 00 00 00 00 00 00  ..y.b...........
 00000033c457d410 70 2f 90 c5 ee 22 00 00 c1 bb e7 f9 f8 7f 00 00  p/..."..........
Possible instruction pointers:

15 ScalerAudio2.vst3 + 0x9bbc1
rsp = 0x00000033c457d420 rip = 0x00007ff8f9e7bbc1
Found by: stack scanning

Stack contents:
 00000033c457d420 80 7b 4f cb 62 01 00 00 b0 2f 90 c5 ee 22 00 00  .{O.b..../..."..
 00000033c457d430 00 00 00 00 00 00 00 00 70 ab 29 e1 62 01 00 00  ........p.).b...
 00000033c457d440 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 00000033c457d450 0a 01 00 00 00 00 00 00 a8 cc e7 f9 f8 7f 00 00  ................
Possible instruction pointers:

16 ScalerAudio2.vst3 + 0x9cca8
rsp = 0x00000033c457d460 rip = 0x00007ff8f9e7cca8
Found by: stack scanning

Stack contents:
 00000033c457d460 a0 f4 00 cb 62 01 00 00 c0 32 8a da 62 01 00 00  ....b....2..b...
 00000033c457d470 10 00 00 00 00 00 00 00 c8 32 8a da 62 01 00 00  .........2..b...
 00000033c457d480 70 ab 29 e1 62 01 00 00 40 01 00 00 0c 01 00 00  p.).b...@.......
 00000033c457d490 7b 04 00 00 00 00 00 00 7b 04 00 00 00 00 00 00  {.......{.......
 00000033c457d4a0 28 05 0e 00 00 00 00 00 28 c9 e7 f9 f8 7f 00 00  (.......(.......
Possible instruction pointers:

17 ScalerAudio2.vst3 + 0x9c928
rsp = 0x00000033c457d4b0 rip = 0x00007ff8f9e7c928
Found by: stack scanning

Stack contents:
 00000033c457d4b0 00 00 00 00 00 00 00 00 c0 32 8a da 62 01 00 00  .........2..b...
 00000033c457d4c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 00000033c457d4d0 7b 04 00 00 00 00 00 00 10 60 00 80 00 00 00 00  {........`......
 00000033c457d4e0 28 05 0e 00 00 00 00 00 5c ef cd 5c f9 7f 00 00  (.......\..\....
Possible instruction pointers:

22 ScalerAudio2.vst3 + 0x9c8e0
rsp = 0x00000033c457d5f8 rip = 0x00007ff8f9e7c8e0
Found by: stack scanning

Stack contents:
 00000033c457d5f8 f0 23 8a bd 62 01 00 00 48 00 00 00 00 00 00 00  .#..b...H.......
 00000033c457d608 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
 00000033c457d618 00 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00  ........0.......
 00000033c457d628 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  ................
 00000033c457d638 40 ec cd 5c f9 7f 00 00                          @..\....        
Possible instruction pointers:

24 ScalerAudio2.vst3 + 0x9c8e0
rsp = 0x00000033c457d668 rip = 0x00007ff8f9e7c8e0
Found by: stack scanning

Stack contents:
 00000033c457d668 00 00 00 00 00 00 00 00 20 d8 57 c4 33 00 00 00  ........ .W.3...
 00000033c457d678 84 e6 cd 5c f9 7f 00 00                          ...\....        
Possible instruction pointers:

109 Audacity.exe + 0x4e9688
rsp = 0x00000033c457e7b0 rip = 0x00007ff753ca9688
Found by: stack scanning

Stack contents:
 00000033c457e7b0 d0 7a 3c c0 62 01 00 00 00 00 00 00 62 01 00 00  .z<.b.......b...
 00000033c457e7c0 00 00 00 00 33 00 00 00 c0 2a e1 bc 62 01 00 00  ....3....*..b...
 00000033c457e7d0 90 7e 3c c0 62 01 00 00 00 00 e1 bc 62 01 00 00  .~<.b.......b...
 00000033c457e7e0 b8 02 e1 bc 62 01 00 00 70 eb 57 c4 33 00 00 00  ....b...p.W.3...
 00000033c457e7f0 60 00 00 00 00 00 00 00 6b b8 ed 5c f9 7f 00 00  `.......k..\....
Possible instruction pointers:

126 Audacity.exe + 0x138369
rsp = 0x00000033c457eb20 rip = 0x00007ff7538f8369
Found by: stack scanning

Stack contents:
 00000033c457eb20 90 0c 28 bf 62 01 00 00 00 00 00 00 00 00 00 00  ..(.b...........
 00000033c457eb30 ff ff ff ff ff ff ff ff 7a 72 d8 ff f8 7f 00 00  ........zr......
Possible instruction pointers:

Ahem
I suspect you are having issues because Audacity is not “exactly” a DAW, so it doesn’t support all plugins
And I suspect you should post in the Audacity forum to have more assistance