Hi @MarkH,
Thank you very much for the details on this one and for your investigation.
Can you confirm that you are working on a Windows environment? If so, this makes me think that this is linked to what @Marius was/is experiencing on his side: Menu Block - #14 by Marius
I had already promised to investigate the issue back then but haven’t done it yet… Mea culpa!
Will try to find a moment in the coming days to get my hands on a Windows PC and check things out.
Cheers,