Cant choose multiple Mic enhancements on Blackshark V3 Pro but you can on V2 pro?

Same for Audio enchancement on Blackshark V3 (non-pro) - you can select Bass boost only, and not the other settings, which is stupid.

In my case it was not a driver problem, it was more of a Synapse limitation where it only lets you use one mic enhancement at a time because multiple effects can conflict with each other. I also tried reinstalling drivers and tichop just like you, but nothing changed until I updated the headset firmware. After that, things started behaving more normally, so I do definitely suggest checking for firmware updates too as that might be the missing piece.