outlook error 'copying meetings is not supported' when copying to PST

UPDATE: this only happens with the beta channel release. the standard channel I have on another computer works fine. then another question is... what is the reason behind this change?

hi all, starting this afternoon (october 17) when I try to copy from O365 to a local PST a calendar invite with participants on it (regardless of whether I created or received it) I receive an error message 'copying meetings is not supported'.

the only annoying workaround is to open the occurrence, save it to the desktop, drag and drop it to the PST. not ideal.

until yesterday when drag-dropping the same calendar invite, I would receive a message asking if I want to copy the occurrence or the series, and *poof* done.

OS: win 11 22h2 all updates installed, OS build 22621.2428, experience pack 1000.22674.1000.0, already restarted even though I know it wouldn't solve the issue. nothing in the event viewer.

outlook: it's the company O365 account. calendar fully synced, Windows client, no new version (come to think of it, the 'new version' button disappeared too from the client). Spoke to a mail admin and to my understanding they haven't activated any strange setting today.

PST: tried to move the calendar invite to two different, I am the owner, they are on my pc, permissions are right, files are small so limit size has not been reached.

calendar events: only events (series or standard occurrences) with participants in it are affected. all events created by myself and for myself can be copied as usual.

I checked the release notes and I can't see anything related to this.

so my questions are ... is it a new behavior? can it be deactivated given how irritating it is? any workaround less time consuming than the one above?

thanks!