Embedded scores don't show up since the new MS website .

Hi,
We noticed there has been some maintenance on the MS site last weekend.
Since then, all embedded scores don't show up any more on our non-public site.
Did you change any of the embedded file and/or security settings, by any chance?
Any incompatibility between Musescore and Wordpress code we should deal with?
Since we use our uploaded scores as learning tracks we hope it is just temporarily.
regards
Fedde
Zang en Vriendschap, pro member
PS
For instance, one of our scores is (secret link) https://musescore.com/user/179978/scores/3083561/s/62905c
I checked it on the new MS site but that URL has not changed
But if I use that as URL it links after 10-15 seconds to
https://musescore.com/node/3083561/s
and says "Page not found"
So I guess the secret link extansion does not work.