GroupWise client 24.3.0 date formats stuck in US format

GW Client 24.3.0 build 145919

We've just noticed that the date format in emails has changed from the date set to US format.

Even stranger, the date format on the mailbox page is still in UK format

If you go into the calendar date options area of the client, things get really weird.

If you click on any of the options to change the dates, they push US format. If you go to set the System format, it shows the Windows dialog box with the correctly set desktop date time format. If you choose to Set GroupWise to system, it doesn't get the system format and just pushes the US format.

This also occurs if your desktop is using another format such as ISO YYYY-MM-DD, again ignored and US format is pushed. Issue present on both Windows 10 and 11 machines,

Anyone else seeing the same?

TiA,

Mark.