I have a feature class in a file geodatabase that I attempted to open with Geopandas, but I got the "list index out of range" error. To bypass this error, I'm reading the feature class directly with Fiona. This worked without a problem, and now I have a Fiona collection. What I can't figure out, is how to continue processing this file in Geopandas. I have been unable to find anything in the respective documentations about how to process an existing object.
I also submitted a bug issue at github/geopandas.