I will have to check this tomorrow night on my GW4. By the time I’d checked that I used the correct tag and that running the time up and then past midnight showed “00” as expected in Creator the real time here had moved to “01”
I’ve reported this to support.
Meantime it is a simple watch ( after I cleaned up all the artwork and made a duplicate of the gauge face from scratch ) so I’ll make a version to import in case this can’t be resolved easily by Facer.