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LED Sign Display Driver Glitch
Spotted this while walking out for supper after a day at the CNC Workshop:

Motel LED sign glitch – 1 Then it got worse:

Motel LED sign glitch – 2 The lower left block remained fixed throughout the glitzy scrolling / rolling / blinking updates in the sign’s repertoire:

Motel LED sign glitch – 3 The affected block is 64 pixels tall and, at a guess, 128 pixels wide. Looks like a module enable failure…