Preview Fuel checkbox won't stay on...

This is weird. I’d like to preview the fuel in viewport (no GPU), but somehow the checkbox doesn’t stay on.
Check the fuel preview on - it shows nothing. Deselect and select the simulator again - Fuel preview isn’t active anymore.

Cache file content shows that there is fuel: (0.00 : 1.00)

phoenixFD_adv_30502_max2018_vray_30_x64_27906

We’ve reproduced the issue. The first occurrence is with the 27903 nightly from Dec.16th.
You’ll be notified when the problem is resolved, and thank you for reporting it !

Hey, it will be fixed in Thursday’s nightly, thanks for finding this!