This is an odd one! I have a Pro account for work and one of my team members does not. She built a a number of collections with tests, exported and sent to me. I imported the collections and tried to run them in collection runner. No joy, on clicking RUN nothing happens. Each endpoint with work on its own, just not in the runner. If I manually copy each entry to a new collection they will run in the runner.
After an hour + of fighting with this I logged out of my Pro account and into my personal free account, imported my colleague’s collection and the bast… thing runs in the Collection Runner no problem.
Does anyone have a clue why this is happening? I have had no problem with any other tool in Postman.