Cannot update music pages

[noteperfect]

I logged in to update specifically some of my music.

I could review changes, but when I click Save, it reverted back to the original.

Tried it twice with the same result. I have been able to make changes in the past. Any help would be appreciated.

Thank you.

[Robert Urmann]

Solve the small arithmetic problem on top of the page, then save again. This security feature has been added some weeks ago.

All best wishes,
Robert

[noteperfect]

Thank you - problem solved.