Bug Report Crash when opening Waveshell VST plugin as audio filter on Mic/Aux (crashlog attached)

[SimonLove01]

Went to add an audio VST as a filter on my Mic/Aux in latest version of OBS Studio 64bit (20.1.0) and got a crash. The VST I'm trying to load is Waveshell (contains multiple different individual Waves plugins).

100% Repro:
1. Open OBS
2. Add Mic/Aux to mixer
3. Go to Filters on Mic/Aux
4. Right click > add > VST 2.x plugin
5. Select Waveshell from plugin list
6. Observe crash

Crashlog attached