When trying to do a lookup or rollback for an in-game user (such as #fire, #tnt, #end_crystal etc) I'm getting the error User "..." not found (relates on what I'm trying to lookup/rollback), though the logging system itself works fine (co inspect shows entries)
Example command - /co lookup r:30 t:1h u:#tnt a:-block
Tested server versions - 1.21.3, 1.21.4
Plugin was obtained from the GitHub repository when compiling the latest version (commit e4db0e9)
The problem does not persist on commit f729c8a

UPD: If I don't specify u: in the command and just write for example /co lookup #tnt ..., the problem does not persist as well

This is also happening on the RC4 from Patreon.