I am using QGIS 3.0 and attempting to intersect 2 block group layers with a common code value of '1'. I keep getting the following error for 2 of the 3 counties in my area of interest. I've tried using the vector buffer tool, the GRASS cleanup tool, the "check validity" tool, and the "fix geometry" tool, all with no luck.
Is this a Python bug? Any recommendations for other workarounds?