Client Unable to Reserve License – Error Encountered

I use the license service Client from tag 3.3.2 on Linux Ubuntu 22.04.5 LTS.

I use it within the server aplication (AI Assistnat Server) started by Qt Creator.

Error encountered is: "Not able to get the TCP port for license service"

In logs you can see multiple attempts: "License service is being started up by another process, waiting"

After a few attempts, the client gets the error mentioned above.

Moreover, even in successful cases (when a license can be reserved) I sometimes see "License service is being started up by another process, waiting"

To make sure qtlicd does not inherit file descriptors, I started it before Qt Creator with the following script:
 
#!/bin/zsh
 /home/lie/Qt/Tools/LicenseService/qtlicd
./qtcreator-install_debug/bin/qtcreator # it runs our AI Assistant plugin which uses a license service client

The error is sporadic. So far, I have not encountered it on Windows or MacOS.

Logs attached.