Xubuntu Linux 21.10 Linux 5.13.0-21-generic #21-Ubuntu SMP
compiled from source code according to BUILDING.md. compiled with “RELEASE” flag.
Issue is triggered when Audacity opens a dialog box with action buttons
Expect icons next to the text in the dialog box. Instead, see only a generic broken icon. (see “Cancel” and “Open” buttons below)
also, gtk errors are seen at startup: