Since we're talking about rail paths, I don't understand this business of being able to get extra when the track bends. Yeah, I've seen it, I understand the idea, but it doesn't always work.
As an example, in my game 93,94 is converted to axis. This is the rail next, East of the river, 7 hexes West of Dnepropetrovsk. There is a rail hex east of that, then dip down to the southeast, then east two, then dip up to the northeast.
94,94 is where the FBD's start, and I can convert the four hexes starting there. But the last hex, where you dip up to the northeast, I cannot convert, even though it is 97,94, which is 4 hexes from 93,94.
I can convert 96,96, yes. but not 97,94, but for that matter I cannot convert 95,97 either.
Any ideas what is going on with this?
Did you FBDs have RRV and MPs? Do you have a screenshot?
There are actually a few known examples where it does not work and which have been reported as bugs earlier in these forums - but having repaired in that area that way before I have not noticed that problem there myself.