Hello fellow FL Studio composers.

(FL Studio v20.9.2, Mac version)

I really like the sound of the heavier7strings vst (https://www.threebodytech.com/en/products/heavier7strings). I installed the demo, and it's causing me some weird issue I've never seen before. I'd be eternally grateful to anyone who can tell me how to fix this!

I drag "Heavier7StringsVST" from the plugin database onto the channel rack. The VST initializes and opens a window with an image of a guitar and a bunch of options. If I click a string on the guitar, I hear the note play. So far, so good.

But the above action seems to break fl studio in general. All instruments are muted at this point. So, for example, if I press the play button to hear my song, or if I place notes in the piano roll, I don't hear anything. The only way I've found to recover from this is to restart FL studio. If I try adding the VST again, the same problem happens. If I save the project after adding the vst, then restart FL studio and load the project, this also causes the problem (that is to say, everything is muted).

Sorry if this is an annoyingly specific question. The dedicated forum on the vst web page is not heavily used and is difficult to search.

Any ideas?