Weird bolt heating up randomly

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1

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The bottom left bolt of the stack randomly heats up? Never happend to me before any clues as to why?. FYI the frame is a hyperlow cg frame with one of its mounting plate replaced by a matek bec/pdb facing down. The mounting hole tested negative from a continuity for a short but its grounded.

2

You could have a short across the carbon.

Check all your connections. Something isn’t right

3

I found the culprit however my flight controller got fried and found faulty. Thanks for you reply.

4

glad you found your fault…

What was it in the end?

5

It was the steel nut on top of the BEC(touching the vcc esc pad). Sorry I took too long to respond.