OK. I'll bite.
Don't fly 'planes or design them. Good at Physics though.
One cause, two possibilities, one result.
Cause. The fuel got too cold and separated to constituent parts. One or more of which didn't like pumps.
Possibilities. Either there was a software warning that was ignored; or there was not a software warning and fuel temperature was therefore not known to the crew.
Result. Engines didn't do the expected.
If I'm wrong I'll buy a personal title. If I'm right I'll buy a personal title.