Android. Where did the alias from the keystore file go?

Question

Android

When I tried to update one of my applications on Google Play, I found a very unpleasant oddity. Two application aliases are missing from the Keystore file. Disappeared from the middle relative to the time of their addition, i.e. there are applications created before these and after.
A completely incomprehensible situation has driven me into a stupor and for a couple of hours I have been trying to find a way out, but I can’t do anything.
The search turned up only lost keystore files or forgotten passwords, but nothing like my situation.
How could this even happen?
Is it possible to restore or regenerate the alias if the keystore file itself exists and the password to it is known?