Unable to rotate around model in zbrush


When I am working in ZBrush, I would be able to rotate and then suddenly after either pressing shift to drag or using a brush I will suddenly be unable to rotate. I keep running into this issue and I don’t know what’s wrong. I’m very new to Zbrush. Please help?
Video of Issue


You most likely hit “T” to drop out of edit mode. You’re now working in 2.5d. Just hit “T” again to enter into edit mode and you’ll be able to sculpt again.


The video doesn’t seem to be available anymore, but when I watched it, ZBrush never dropped out of edit mode, so I’m not sure what the problem is? I tried, but couldn’t replicate the issue on my end.