Dear @StefanU!
I’ve checked ics files on google side.
The first invitation answer looks like this, which is good:
ATTENDEE;CN="INVITED NAME";ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED;CUTYPE=INDIVIDUAL;RSVP=FALSE;X-EGROUPWARE-UID=22:mailto:XXX@XXX
ORGANIZER;CN="ORGANIZER NAME";X-EGROUPWARE-UID=c3295:mailto:XXX@gmail.com
UID:67m1up58d50j0i6c6rm9t2cp7q@google.com
UID:c4834a69-3fbe-41a7-b3ac-d4de1e7e113b
After modifying appointment start time and accept from eGroupware looks like this:
ATTENDEE;CN="INVITED NAME";ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED;CUTYPE=INDIVIDUAL;RSVP=FALSE;X-EGROUPWARE-UID=22:mailto:XXX@XXX
ATTENDEE;CN="ORGANIZER NAME";ROLE=CHAIR;PARTSTAT=NEEDS-ACTION;CUTYPE=INDIVIDUAL;X-EGROUPWARE-UID=c3295:mailto:XXX@gmail.com
ORGANIZER;CN="ORGANIZER NAME";X-EGROUPWARE-UID=c3295:mailto:XXX@gmail.com
UID:67m1up58d50j0i6c6rm9t2cp7q@google.com
UID:4f232657-ad58-41f2-b208-dba3343dc162
I think the second answer contains the organizer as an attendee also (with chair, but with needs-action), wich is confusing the system.
Also, there are multiple UID is in the answers. I think this UID needs to identify the event.
Does this cause the issues?
Thank You!
Regards,
Z