Hi @ steveshe,
Are you still having this issue now?
If you issue still exists, please share a screenshot of the configuration of your flow, so I could try to help you.
As @ Pieter_Veenstra’s test, I have made a test on my side and don’t have the issue that you mentioned.
The link with “&” always work well on both “Outlook.com” and “Office 365 Outlook” Connector.
Regards,
Alice Zhang