Having the game paused for a long time breaks the event cycle.

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Basically what the title says. Pause the game, wait a long time (at least 30 minutes - 1 hour I guess) and then be lost in emptiness, with nothing spawning.

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I equally have good and bad news. At least with Firefox in level 1, the bug was not possible to reproduce (by waiting 30 minutes and then unpausing). So it will rarely ever happen, I suppose for now? But this also makes it not so easy to track down....more testing required, I guess.

EDIT: Same result with Chromium.