To be honest, I don’t know a way to automatically set camera to 360p 
If it happens, it is an unexpected bug. Can you set them back to SD or HD to do another test? If you see 360p in individual view, please send us a log and reply me with your ticket #. We can investigate how it happened.
BTW, when cameras are in group view, they are set to 360p automatically. You can’t change them. The reason is that 4 lines of 1080p streaming takes a lot of network traffic and CPU to decode/render the frames. They may run out of hardware limit. So, with that said, if you see 360p resolution in group view, that is expected. V1 cameras will still be in SD/HD view since they don’t support 360p.