Has anyone else come across the issue where some one-time Zoho CRM meetings do not sync to their Google calendar? 

I set up many of the meetings for our organization directly from the CRM calendar. Recently, random ones will not sync. I conducted a chat with Zoho only to be told that the reason they were not showing is because I am not the host. I pointed to several instances where this theory was disproven, but the developer is sticking with that answer.

I cannot for the life of me find a logical pattern between which ones sync to my Google calendar and which ones do not. I've tried theories based on updating meeting information, adding participants after creation, one- and two-way sync, etc. but still cannot find a pattern.  

I attached an example. The left is the CRM calendar. I created the morning meeting in the CRM. The host of the meeting cannot get the meeting to sync to his calendar either. The afternoon meeting was updated, but I am not the one who created it or updated the time on it. I have numerous other events created in the CRM the same way where I set up a co-worker as the host and myself as a participant that sync to my Google calendar without any issue. These are both non-repeating meetings as I am well aware (and just as frustrated as MANY others) that recurring CRM meetings do not sync to Google calendars.

Has anyone else had this issue that can shed some light on a solution?