I have been using Avast Password Manager for at least two years. I have always used the same master password. Today when I tried to enter the Manager it would not accept my password. I tried again very carefully several times, but no luck. So I chose the option to change my Master. The change dialog first asked for my old password, then had me enter a new one twice. It accepted the change and immediately let me in. So apparently it recognized my old one, or it wouldn't have allowed me to enter a new one.
Why wouldn't it let me use my old password to enter Password Manager but it allowed me to use the old password to create a new one??
It seems very much like Avast was forcing me to change it. Has anyone else experienced this?