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What is this? I've already called Apple Support and they walked me through a repair that worked for the last 2-ish months, but now it's back.
When the computer goes to sleep, it will randomly come up with this screen out of nowhere. Then when I move the mouse or press keys, it goes back to normal.
iMac 27″ 5K, macOS 10.15
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Screen distorted, color inverted, wavy, wakes on its own
