so far tried:
scan and repair
delete battlenet folder
uninstall reinstall battlenet
uninstall reinstall D4
run battlenet as administrator
network reset
driver update
even tried adding additional lines to launch for directx11 or windowed (saw that in WoW forums exact same problem happened, and that’s how some solved)
So far nothing works. Support is useless, I doubt there is actually a support, probably just an automated script. Really about to give up