I recently updated my system (I haven't updated it for over 3 weeks) to current snapshot and deluge is not starting at all (core dumped):
$ deluge-gtk python3.8(31669) in free(): bogus pointer (double free?) 0x1c0000002400 the same with qbittorrent: $ qbittorrent qbittorrent(46686) in free(): bogus pointer (double free?) 0xcabaacf5eb495c7c deluge-2.0.3p2 qbittorrent-4.3.8 kern.version=OpenBSD 7.0-beta (GENERIC.MP) #206: Thu Sep 9 09:24:02 MDT 2021 [email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
