Hi @Kaniz Fatma​ , thank you for the suggestion. After further discussions with my team, this seems to happen in many of the following cases:

Too many cells in a notebok

"Too many" display commands

The last cell in a notebook not being a python cell

The error that we receive is very general, and shown below. In this case, I was able to successfully push a notebook, then 5 minutes later I could not push the same exact notebook, so I definitely HAD push rights.