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.
I’ve seen this behavior too, I forget where. For me it was a bit easier since the fields displayed a different number of stars. I did spend too long trying to figure out how my password manager could be failing that way