TW suddenly does not boot to GUI, Boots to command prompt

As states, The last few boots, TW booted to command login prompt.
After logging in, with about 5 seconds, the GUI splash (showing the loading bar momentarily) showed up and I was presented with a full GUI system.
WHat is going on here, and how do I fix it?
thanks in advance
John KIlbert

Maybe the system “only” needs longer to boot for some reason?

So do not login, but wait instead.
Does the GUI also show up then after a while?

The boot delay may be related to a broken ntp update (see other threads), this has been reverted though and updating your system should fix it.