HISE 3.0.3 VST crashing REAPER 6.79

[ObsydianX]

Windows 11 Build 22621
HISE 3.0.3, both pre-compiled and compiled on my own.

I tried on my main install of REAPER and a portable clean install of 6.79.

FX window lags and freezes REAPER without even showing the HISE screen. REAPER refuses to respond and then crashes or I'm forced to close the program. Standalone works just fine.

EDIT: 3.0.1 crashes too.