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i have a problem that all my downloads are stalled at 100%

If you'd searched on "stalled" you might have hit on my recent query.
viewtopic.php?t=10001
So you have a certain number of torrents set to queue? Is this a new occurence?

So you have a certain number of torrents set to queue? No
Is this a new occurence? yes after the new update >> also the recheck is not working at all