Awakened added fire lvl 10 only adds 1 lvl

My physical gems only get 1 extra level despite my awakened added fire being level 10
i have a lvl 6 corrupted awakened added fire support in foulborn dialla with +1 level and runegraft of gemcraft giving it a total of +4 levels, it says that it gives physical skill gems +2 levels, but it doesn't
bug report reference number is 1.864.610.740