yz22015

Hi, I am running suite2p v0.11.0 on12-plane datasets, using `anatomical_only = 3` for ROI detection. I noticed that the process crashes when no ROI is detected at a plane. e.g....

### Describe the issue: Hi, I want to run s2p on a single plane 2P dataset that has already been registered. The registration was done with s2p in a previous...