noelbhe The default "long" password should suffice, although it does allow characters which are not in the set of symbols. If the password that is generated does not use an allowable symbol, I suggest increasing the counter by one to get a new password with a different symbol.
With that said, we are looking into improving the template so it will be more compatible. Unfortunately website password policies are often conflicting in nature, so no perfect solution is possible.
I recommend sharing your finding here, so we can include it in our research: