Submit Data For Processing Error

[gking_AB]

I'm attempting to submit iTree data for processing and running into an error that pops up when the progress bar reaches 32% with a window that appears with "Object reference not set to an instance of an object". I have never come across this before.

I have recently completed a new tree inventory to process (~500 trees) and went through the data import and validation steps. No errors are returned. I have tried to submit on four different computers (3 at the university and then downloaded iTree onto my personal laptop) with the same result. At first the project was in a Google Drive (being accessed with Drive for Desktop), but after reading through the forums I came across a post that indicated the project should be housed on your local machine. So I copied it over, closed iTree and then re-ran using the local version and the same error came up!

Any suggestions or help are appreciated.