I can also confirm that the issue has not been resolved. Took longer here as well (about 10 days), but one of my devices experienced the issue again just now.
we discussed this more than one year.... asap... no, it's Mikrotik....same problem on my RB4011iGS+5HacQ2HnD,,,,wlan1 interface QCA9984 stop working,,,re-enable stuck on "initializing",,,,,only reboot can make it return to work.
hope mk can fix this....asap
After upgrade today to 6.45.6 (stable), i cannot connect to 5GHz.