When installing the annotation data for Ensembl 78 I saw this:
Saving DataFrame to /Users/iskander/Library/Caches/ensembl/Homo_sapiens.GRCh38.78.gtf.expanded.csv
Saving DataFrame to /Users/iskander/Library/Caches/ensembl/Homo_sapiens.GRCh38.78.gtf.expanded.csv
When installing the annotation data for Ensembl 78 I saw this: