"Saving...please don't turn off your Xbox or quit the game"...forever

Something of a worrying phenomenon.

Twice now after purchasing upgrades for my car (many times apart, not consecutive) I got the standard message for saving…then it got stuck in an endless loop.
Gritting my teeth I had to quit to the Xbox dash and load the game again…terrified that my progress had been wiped/corrupted.

But no it was okay…except back in the garage section the car I was working on had no little icon.

The car model was there and accurate but no little pic in the left column of cars by brand.

I wondered does the game take a snapshot every time you modify your car and that saving loop didn’t get the chance to?

Have you experienced this problem?

(Standard Xbox One from 2013 running game off a 4TB external desktop 3.5in USB3 HDD with own power supply)

I’m having the exact same problem, except on PC.

Same issue here, PC.

Same here on PC, I just alt+ctl+del and terminate it. Works like it saved afterwards…