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TYPICAL bid \ask spread in low volume options;
most likely you could get in for$10+ no exit bid\LOL.
According to that trader FSU who knows, its a stub quote. The 00.51 bid /ask $9.00 proved a another clue.
Its a bit like the early option trader who picked up the phone , wanted to sell; other end of phone said '' to who?''
Midpoint bid/ ask value seems like that was auto removed from liquid stuff/LOL, as your guts guessed;
but dont really know on that low volume stuffQQQ options did have some same patterns like that.
Low volume??
The Nov. 16 strikes near the money are trading thousands of contracts.

QQQ options did have some same patterns like that.