What was the issue, and has it been fixed?

[Mr Mystery]

Flamers ignore cover...so how did this even ever become an issue? If a Heavy Flamer hits the rear end of a AV10 vehicle, it damn well can glance or pen dat arse -- with no cover saves allowed.

Main issue there is whether we RAW, or RAI.

For my money, players should stick to one or the other during any given game. Helps to reduce bickering between the two, and thus cuts down bickering in general.