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Fanuc 31i hangs sometimes at M code (SOLVED)

Its a millturn. Doosan smx2600s. Its the x axis that is moving the most. I guess if i edit the servo off delay in the ladder it will be better. Think after 2 years the x axis brake is taking a few mili seconds longer to fully clamp. The x axis brake have to work the hardest because it holds the milling head like the z axis on a milling machine.
Personally, before altering parameters to get it to run I would at least have a look at the brake system. Might just be a little wear or might find an issue. Something like oil or coolant leak getting on it.