M365 Excel Connector invalid token


i have set up the office 365 connector and have the test app reading into an excel file. However I noticed that after a certain period of time, when i try to get items from my one drive via tulip player, I get this error message:

im able to fix this by just testing the connection and then saving it.
Then it will then work on the app for a certain time period.

anyone know the issue here? is it a Azure connection issue or something with Tulip i have done wrong?

thank you