Unable to import Gnome Schedule iCal file to Google Calendar
So, a long time ago (IIRC it was before Gnome 40), I used to follow the GNOME Schedule on Google Calendar with the .ics file (https://www.gnome.org/start/unstable/schedule.ics) available on the Schedule page (this one for GNOME 42). However around the time of GNOME 40, it just stopped working, new events wouldn't show up at all. I decided to ignore it up until now.
Today I decided to retry importing the .ics file to see if I could manage to get it working, but still no progress. If I import via the URL, no events show up at all in the calendar. But if I try to import the downloaded .ics file, it says that it imported 0 of 0 events.
On the other hand, GNOME Calendar has no issues importing the file.
What can be done about this?
iCalendarValidator says the .ics is ok, but Google Calendar still won't accept.
According to those few links below it might be related to the Sequence number:
https://support.google.com/calendar/thread/44825083/sequence-number-inconsistency?hl=en
https://icalevents.com/4437-correct-handling-of-uid-recurrence-id-sequence/