Pipeline, I can copy/paste just 4 bars as you're doing in the video but when I copy a bunch of lines I crash (see video). In the video I copy a few lines, press Ctrl+C, the round busy image appears twice and boom, FL Studio 20.1 crashes. Thanks for the reply.
What do you mean VSTfx? If you mean the plugin you've mentioned before I may try it later.
Also, how are you attaching the image/video in your post?
https://www.chasms.com/crash.mp4