Interestingly in all 4 times I tried, it worked once but failed other times. I still don't know why. my anndata object is very small so I guess using pancreas could produce same result, I'm gonna try ...

Hi, I am new to scVelo application and I have some problems during studying the tutorial 'Velocity graph and pseudotime' in https://scvelo.readthedocs.io/en/stable ...