The combination B/T On and EQ Off while Load B/T with Preset is On does not make sense and therefore causes the mentioned behaviour. Fact is if you turn off EQ that moment B/T is automatically turned off as well - because Load Preset with B/T is set to On, and that moment B/T is part of the PEQ.
We did not restrict the user to then activate B/T manually, via menu or remote. But during a sample rate change the EQ is reset to adapted values, notices B/T should be off, and sets it that way.
The only way to fix this in a fully logical way is to no longer allow to manually turn B/T On in the above setup. But I am pretty sure this will cause more support requests about something that seems broken than the current scheme...
Regards
Matthias Carstens
RME