I have been using 11 for the last month. No problems. Last few times I have opened any project the average audio performance is peaking when I open any project. They do not play back except in a stuttering way. Most have hardly any plug ins and no vst. All the projects open and play without problem on Cubase 8, last version I had.
you haven’t really given any information to help track down the problem…in fact you haven’t given any information
I’m happy to give some things to try thoug:
what is the buffer size of your audio interface ? - increase it
is ASIO guard on/off - put it on
are tracks ‘record enabled’
have you tried deleting your preferences - try that?
are you on a mac or windows pc ?
if windows, what version ?
My bad, it had changed to 32 bit float for some reason