Guyz let's stay calm !! lol ...
First there's thousands of people using them without a single issue !! and i'm in those ....so my goal , is to help Bit to be on our team !!
When V9 was first droped i heard horrible stories and specualtions !!! so i updated one plugin (MPX) just to check : super easy !!
So i went Mercury ...and i don't regret (they still greedy as hell , the last WUP update is an exemple) but i can say one thing :
1) When they drop a plugin : it works from day one and extremily rarely , there's bug in it !
2) you're investing to a brand a that was here 10 years ago and certainly be here in 10 years ..!
3) I went waves to minimise the brands i deal with : easy maintenance and installation !!
4) They got some unique plugins , some sounds real great !!
Now back on topic : just call them , the guyz are super pro for real ...
if you haven't done one thing to the licences (not upadte , internet connection via the center or some) and it past from working to not ...some happened !!
so try to isolate this on your system ....the communication is in trouble between your plugins and the licence ...check antivirus (maybe he thought it was a threat) , upadte of the system (maybe the licences uses a component that have been updated) , check the project (try with other project) and even your buffer ..sometime i have issue with plugins if it's crazy loaded and i lowered the latency crazy (for another project i worked with after;))) ...do you have a cleaning utility that done some wrong on your system ...ect...
My comps are not conncected to interenet unless i do upadte or need it for centers (Waves , NI ect ..) no anitvirus , firewall , no win updates ...ect ...