EDM-010 power rail overheating

Have a EMD-010 that is overheating from the 6 phase power rail. It will run fine with the metal board cover off and a fan on it but just placing the metal cover on will cause it to overheat within a couple minutes. I took a board that is not overheating and compared the heat signatures with the failing board when loading the same game.
First is the working board:

Second the failing board:

On the failing board, the bottom inductor is not lit up…
Is this a bad mosfet or is something else failing as it gets hot?
Going to map out diode readings this evening between the two boards in that area, hopefully something obvious will pop up.

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