lsw -r # or with any parameter
X Error of failed request: BadWindow (invalid Window parameter)
Major opcode of failed request: 15 (X_QueryTree)
Resource id in failed request: 0x0
Serial number of failed request: 8
Current serial number in output stream: 8
suckless-tools v44-1. Using nvidia driver over x11 on Ubuntu 20.04.
Searching for a workaround to avoid lsw and wmutils altogether.