'GDK_IS_MONITOR (monitor)'

I am seeing multiple instances of the following message in the Gpredict terminal window. I am running a newly installed Ubuntu 22.04 LTS and Gpredict installed from the Ubuntu Software app.

(gpredict:5692): Gdk-CRITICAL **: 11:22:46.987: gdk_monitor_get_workarea: assertion ‘GDK_IS_MONITOR (monitor)’ failed

Does anyone know what this could be? I have done various searches but have not discovered anything pertinent.

Thanks in advance for any help.

Red - KC4LE