Quite common when Glyph hacking level 8 portals with 5 glyphs.
4 correct glyphs = 0% time bonus = 200 AP
5 correct glyphs (perfect) with <1 second left, = 0% time bonus = 0 AP
wow interesting.... its like the game thinks u never glyph or hacked
tested it, there's not even 0ap popup just nothing 🤐😆
You only get 100AP from hacking enemy portals after a perfect hack with less than <1 second remaining (plus sometimes a few items). 😪