bug: X returned BadAtom

[dromer]

On Linux (duh) as of this week I get these messages when starting the standalone:

$ ./Plugins/Standalone/plugdata 
JUCE v7.0.9
ERROR: X returned BadAtom (invalid Atom parameter) for operation X_ChangeProperty
ERROR: X returned BadAtom (invalid Atom parameter) for operation X_ChangeProperty
ERROR: X returned BadAtom (invalid Atom parameter) for operation X_ChangeProperty
ERROR: X returned BadAtom (invalid Atom parameter) for operation X_ChangeProperty

While using the program another set of these may come in again at other moments. For instance when I right-click on text in the console two more will show up.