Zoom App/Web-based Zoom/Google Calendar Integration/Syncing

Greetings - HELP! 

My Zoom App, web-based Zoom page & scheduled Zoom meetings do not align.

My Zoom App & Google calendar said that a meeting started at 10am this morning and the web based version said that it started at 10:30am - which is the source of truth and why don't they all align? 

Also - the app & web-based page will often show the same meeting occurring  on two different links. 

For example:

DB Zoom at link 123 from 10am ET to 11am ET

DB Zoom at link 456 from 10am ET to 11am ET

I don't know which one is accurate and which one I can delete to clean up the view or how 2 got there to begin with. 

THANK YOU!!!