OK, notice pattern 5 is selected (underlined). I press play and expect to hear pattern 5. Instead it immediately switches to and plays pattern 1.
I do notice that the label for pattern 1 is blue, unlike the others, but if that is relevant I have not been able to so far find any way to change that.
In your screen shot Pattern 1 is selected it’s dark. If you select Pattern 5 it should be dark.
On mine If I have Pattern 1 selected, if I select 5 it turns dark and Pattern 1 is no longer dark. I don’t see the underline unless I have multiple patterns selected then I see the one I have currently selected underlined. Be aware if you have say 2 patterns selected they play in order.