In password security, the longer the better. With a password manager, using more than 24 characters is simple. Unless, of course, the secure password is not accepted due to its length. (In this case, through STOVE.)
Possibly indicating cleartext storage of a limited field (which is an absolute no-go), or suboptimal or lacking security practices.
Microsoft does this to our users at my job. They go to charge their password and it won’t accept it but won’t tell them what the requirements are. “Your password doesn’t meet our criteria.” Okay, so what are you looking for???
Worst is that there seems to be a soft block at some point and instead of telling them that, it shows this dumb error instead over and over again no matter what password they choose.