I have created a flow with For a selected item trigger, and I have added some run only users. Button in a Sharepoint list is being used to start the flow. One of the users can not run it. When he clicks on that button (inside the list), flow just keeps loading in smaller "window" on the right side of the page. Other users instantly get the form, that has been defined inside the trigger, and normally start the flow.
Hope someone had the same issue, and has the solution!
There are several different permissions on the list, and connected Share Point site. The particular user (with problems) has the same permissions like several other users that have not any troubles running the flow. I just want to add that all the run-only users do not provide their own connections to run the flow. They use the connections created by the owner of the flow and Share Point site.