So I made a clock a while back, and it's been working great, except that one of the digits seems to be acting weird..
I am ignoring that my drive system could be causing it since if it was, surely the other digits would also be doing this?
It appears to look like cathode poisoning, but I'm not so sure. It happened pretty suddenly (over the course of a few weeks) across all the digits of the display (and it was on the seconds display which is the most constantly changing display in the clock)
I'm very confused. Is it just a defect?