Do you mean this fix? This fixes the calendar off by one day issue, but there is another issue of meeting off by one hour when view by someone else in shared calendar or your own calendar.
The time block of the added invitee is off by one hour, as the meeting is pushed later one hour.
So from what I can see the meetings are appearing correctly in the calendar but not in the scheduler bar? I believe this should be solved by https://github.com/salesagility/SuiteCRM/pull/4335 but it’s been quite a while since that PR was made so it’s possible that this is a new issue. Let me know if that PR solves it and if not I can re-investigate.