I'm not sure why or how but reverting the AIO plugin to 1.10.4 and the main plugin to 5.2.2 resolved the issue.
Any ideas?
Hi Anh,
No there are no other plugins installed. Not shown in the video below but also there are no browser errors or warnings.
https://www.loom.com/share/3cea7cf839d940efab462a5798810ac0