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good ideahttps://imgur.com/a/ZqohKPDsorry about the potato quality, I think my toy microscope is dying
You have try to clean conductive film and motherboard connection with epa? And you see with microscope any part dirty or blackened?
As to that controller issue, try to update the thing first, as there has to be something screwy going on inside of that MCU to be causing that kind of issue. If that doesn't work, a possible workaround might be to put a Pull-Up Resistor on the DD line (100k or so to 3.2v) and see if that keeps DD from activating, except when you want it to.