I have seen this also, it only updated after 2 reboots.2023
2023.20.9 manual software update check still not working: Your car software is up to date as of 1 Aug 6:26 pm
that was the last time I rebooted the car
manual software update check does nothing, it instantly returns Your car software is up to date as of 1 Aug 6:26 pm
This is well past the 24 hr limit on checking
Second time i waited until i had data signal, before entering the menu where it says when it was latest checked, dont know if this makes any difference, just putting it out here.