Issue with change of implementation of EncryptedType from ‘LargeBinary’ to ‘String’

[ArchibaldNoah]

Good morning

It just happend ...

"The ‘EncryptedType’ class will change implementation from ‘LargeBinary’ to ‘String’ in a future version. Use ‘StringEncryptedType’ to use the ‘String’ implementation."

I am not sure what triggered the migration but it worked fine on the database side.

However, when I am running my program now, I am getting:
"binascii.Error: Invalid base64-encoded string: number of data characters (49) cannot be 1 more than a multiple of 4"

I am using EncryptedType quite a bit.
Typical usage: "last_name = db.Column(StringEncryptedType(Unicode, SA_SECRET_KEY, AesEngine, 'pkcs5'), index=True, unique=False)"

I couldn't find anything on this issue or a hint on the migration in the usual sources.
Any suggestions?

Kind regards,
Jürgen

[ArchibaldNoah]

Since the last migration I upgraded to SQLAlchemy-Utils==0.41.1 from SQLAlchemy-Utils==0.38.3, SQLAlchemy==2.0.23 from SQLAlchemy==1.4.41.