Radio buttons not visible in ImportCSVDialog.ui

[RM87]

compiler is unable to locate radio button rbCommaDelim inside ImportCSVDialog.ui although it is there. No radio buttons visible with KUIViewer. Moving it temporarily outside QGroupBox and QHBoxLayout makes it compile.
No idea whether this is only my machine or something that has been broken for a while and only now is caught by compiler.

[Krakonos]

Can't reproduce. The source is compiled and finds it on multiple machines, Qt Designer shows the radio button.

Can you double check with qt designer and provide more info on the platform (fresh debian install + what packages? I could try that in docker).