Software is NEVER finished nor completed
" but a lot of bugs and crashes says the opposite." This is the norm here and dont expect anything different.
By your logic I should get a refund from SX2 till now since things are never bug free
There are other DAWS with less issues. Dont expect any support from any DAW either as they all SUCK
Unfortunately for you it has been a crap show since the release of version 10. 10.5 is no different. 9.5 wasnt bad
BTW 10.5 is where Im getting off the bus here