Systemd unit not found on start but exists on status

A service exists and succesfully found via status command

>sudo systemd status my-service
● my-service.service - My service description
   Loaded: loaded (/usr/lib/systemd/system/my-service.service; static; vendor preset: disabled)
   Active: inactive (dead)

however, just in next command:

>sudo systemctl start my-service
Failed to start my-service.service: Unit not found.

I have absolutely no idea where to look Nothing changed between commands, they give same result even if eexecuted together via bash-scripot or connected with ;