Experienced the same thing - very very painful experience! Was just watching the pinwheel spin forever, force shutdown my laptop, and be put at the end of the queues again... It took around 2 hours when I finally decided to reschedule the exam. Pearson customer support wasn't helpful enough, though they said they will try to contact me within 48 to 72 hours.
I managed to fixed it! by fumbling with my laptop and with the help of google. I had no idea what I did that made it work, but here are a list of every I did in case anyone found themself in the same desperate situation as I was in:
- Make chrome browser the default browser (I was using Arc as default)
- Allow cookies & allow pop-ups in your chrome browser settings
- followed the recommendation from this link: OnVue fails launch simulation test - part… - Apple Community
- turn off Stage Manager in the settings: go to Desktop & Dock > Stage Manager (toggle to off)
- turn off universal control: go to Display > Universal Control > disconnect all devices. On the Display page, scoll down to the bottom to click the "Advanced..." button, then toggle off the "Allow your pointer and keyboard to move between any nearby Mac or iPad"
- Move the OnVue app into the 'applications' folder (as opposed to the program being in your Downloads folder)
- Make sure OnVue has permission for 'Input Monitoring': go to Privacy & Security > Input Monitoring, then click the + sign and add on OnVue app
- On Privacy & Security > Input Monitoring I also toggle off permissions for everything else that wasn't OnVue, like the Logitech options+.
Hope this helps somebody out there...