bug in editor

[legoboy]

i have found an bug...

The editor is making random Creeper/anticreeper(on three places) the number is increasing by 1 sec/10000 creeper.
this happens if i switch on the auto advance on creeper simulator.
did i something wrong? ???

[Grauniad]

Ultra-dense creeper (or anti-creeper) will "flip" to the opposite type. is this perhaps what you observe?

[J]

I think there was still creeper in the black area what still could move (suggestion: don't let it move).
I talked too Legoboy in the chat and he said he didn't save the map because the editor crashed.

[legoboy]

The editor will have a problem with a strip of empty fields ...
if i open any map sometime it wil happen but by opening the editor or by clikking on new map it wil do it allways

ps: translated with Google Translate