The first one is detected as a sample, but the folder was left behind for some reason (tough to say why without logs of the import process).
The second has a numbering conflict, which currently results in an error and there isn’t yet a way to override that error on Sonarr (already have a solution mostly implemented, but not released).
Sonarr won’t delete a folder unless it imports all the valid (non-sample) files in it, so the second issue is intended, the first issue sounds like an error during import, specifically the cleanup after import, so to anyone seeing this, debug logs of the import of that specific episode would be great.
Are these files in the drone factory?