did you happen to inactivate the input taxon before committing the taxon change? I'm trying to understand why some IDs were withdrawn, but didn't get automatically reIDed as the output taxon. might be a bug

e.g. https://www.inaturalist.org/observations/5249458 (mine and Charlie's)

looks like most of them were reIDed as different taxa anyways, so kind of a helpful bug haha

I added it to the list of failed/partial failed taxon changes: https://forum.inaturalist.org/t/delays-failures-with-taxon-changes-wiki/4388