It happens on v5.83, 6.01 and 6.02 on my system.
The conditions of the crash are as follows:
- At least two Scalers inserted on different tracks.
- both have chord arrangements on (not on default opening screen ).
- one Scaler removed - save - BOOM!
I opened the “new temp” file and Reaper seems to stop saving on the writing the parameters of the first scaler plugin.
I’ve made a post on the Reaper forum too. I’ll let you know if I get to the bottom of this.
For now I’m running with one instance of Scaler per project in a dedicated process.
Also, there could be other plugins with similar behaviour, I’m still investigating…