LFO Keytracking gets out of sync when voice transposition is modulated

Basically: if you want to add flutter to a bass using an LFO on trigger mode with keytracking, it works fine. You can edit the transposition of all voices in the advanced settings and it’ll still work. However, if you automate it using an LFO, the phase gets out of sync which is problematic if you’re trying to incorporate a kick because usually you’ll try to fit the flutter effect on the zero-crossing to eliminate peaks

I’m running Vital 1.5.5 on FL Studio Producer Edition v21.2.3 on Windows 11 though I dont think its a hardware specific problem

For the key tracking are you using the LFO mapped to Note?
If not you coukd try that and changing its mapping in the matrix to a limited range or in a specific way (sharp curve or steps maybe?)