Update of GLUE record fails for .eu TLD

When trying to dispatch an update for a GLUE record for a .eu TLD I receive "500: Internal server error" from the OVH API CALL
The path relates to /domain/{serviceName}/glueRecord/{host}/update

This happens via
- ovh web ui
- ovh api via the browser
- ovh api via a python script

Deleting the old entry and creating a new one works.

The ip to be updated is an ip4 class. Usually a "500: internal server error" correlates to unavailable servers/services on the host site, so likewise a problem at OVH.
The error changed within the last 2 weeks as far as I noticed and it read "service not available for this type of domain" before. So seems like there was apparently some actions at OVH regarding this.

As a consequence: it really looks like the update functionality at ovh is broken for .eu. I checked this with another tld type and there it works.

Workaround: delete old entry, create a new one. But this is not the intention of having an "update".

Another question: When will ip6 classes be provided for .eu GLUE records? Seems also still missing, while available for other tld classes already.