all the power rails seems to be correct
That includes the +55 and +150 rails ?
The U1211 OP Amp is running at a temp around +65C to +70C and it feels a little bit high to me.
Check Q1212, Q1214, but don't forget the other half of that opamp, driving Q1218.
At a glance I don't understand the purpose of Q1217 (also, how are they getting +5V from bridge CR1218 producing a negative rail ??)
but you could check voltage drop accross R1240 for an idea of how much current U1211A is providing. It's driving a power bjt directly; depending on its operating Ic and hFE, it may be normal for the opamp to be pushing a fair amount of current.
Worth checking all those BJTs for obvious failures (although unlikely if the rails are good).
R1235: what's its V_drop and therefore current ? They did size it as 2W so they expected some heat in there; if the opamp is powered from -12V rail (unclear) and it's drawing more current than it should, maybe...
You said the -12V was "sticking out", is it still off from nominal ? If regulator U1212 or its pass transistor Q1216 aren't operating correctly, that could also explain some of this. AFAIK feedback network R1230 and R1231 should ensure fairly symmetric rails + and -12 ?