Do you think it's because I use Boolprop sometimes?
If with "boolprop" you mean the debug mode (boolprop testingcheatsenabled true), certainly not. In fact, any player should play in debug mode
on all the time.
Even if you don't use any hack on purpose, some can exist anyway, and you could be unaware of that. You could have downloaded them with lots. My advice is: binary search. You can find all the instructions in the FAQs.