Unable to attach new audio files to scores in forScore 15.0.7 on iPadOS 26.1

Concerns forScore 15.0.7 on iPad 26.1: I cannot attach any kind (MP3, WAV etc) of audio file anymore to my scores. Have forScore on two different ipads - both have the same problem. The Audio files are properly stored in the ForScore Folder, visible and playable to me. This just happend recently and is a BIG problem for me. forScore Support seems to rely on a single person - who is battling legal problems too, it seems. Reply I got “Thank you for submitting a Pro Support ticket. If we're able to help, you'll get a response as soon as possible. “ - Strangest support ever - I am a PRO member.

Maybe somebody here can help?

Thank you so much!

[Re-Titled by Moderator]

Original Title: forScore 15.0.7 on iPadOS 26.1: Cannot attach any new (properly stored) audio files to my scores anymore.