Bugs in Pa3X OS 1.63?

[rock1009]

As always, forgive me if this problem is addressed in other posts...if so, please redirect me to them...

I am having problems with sudden random changes in track settings (volume levels, assigned instruments, etc.) in recorded and saved songs in Pa3x sequencer section...random changes that I don't have anything to do with. A reload (reset) of the currently saved song often addresses the issue but it continues to happen on a somewhat regular basis. It seems like a system error, not an operator mistake. Does any one know what I am referring to? Any simple explanations? Thanks...