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Describe the Bug:
AI had Dimir Doppelganger copying Vampire Hexmage.AI then sacrificed it and targeted my Kozilek's Pathfinder which had a -1/-1 counter on it.AI then cast Fate Transfer to remove counters from Kozilek's Pathfinder which had no counter's and to move them on AI's Reckless Scholar which got 255 +1/+1 counters!
AI used 2 more times this trick (move all -1/-1 counters from a creature and then move again counters from that creature which now has no counters and put 255 +1/+1 counters on to AI's creature.

Which card did behave improperly ?
cards that remove counters? - counter system?

Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)
Manalink 2016/08/27: Eldritch Moon v2, duel

What exactly should be the correct behavior/interaction ?
You can't move 255 +1/+1 counters from a creature you previously removed all -1/-1 counters or any other creature if it doesn't have those counters on it.

Are any other cards possibly affected by this bug ?
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This seems familiar. Anyone else remember a similar problem?

remove_all_counters() was setting the non-displayed counters (there's slots for two types beyond what can be displayed visually) to 510 +1/+1 counters (0x0000FFFF) instead of zero counters of unassigned type (0xFFFF0000). Fixed in a00530b.

Manalink dev 778ccb5 version.
This was tested only by human hopefully it works correctly by AI, too.