Too many open files (24) related to /dev/urandom?

[parabola]

Since updated to Synology DSM 7, my Transmission has been consistently stopped working with "Too many open files (24)" error.

There's no lsof that comes with Synology DSM 7, so I had a look in /proc:

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sudo ls -l /proc/20950/fd | cut -d'>' -f2 | sort | uniq -c

besides the expected /volume1/@appdata/transmission/transmission.log and the files that I'm seeding, I also found huge number of /dev/urandom:

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    831  /dev/urandom

Is it normal to have that many opened file handle to /dev/urandom?

Could this be what's causing the "Too many open files (24)" error?

Also, my log is full of errors like:

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[2024-06-23 14:21:15.581] ERR variant.cc:1102 Couldn't save '/volume1/@appdata/transmission/resume/01a695fc4410298c6d11b924586d2b6c94288b2c.resume': Too many open files (24) (variant.cc:1102)
[2024-06-23 14:21:15.581] ERR variant.cc:1102 Couldn't save '/volume1/@appdata/transmission/resume/02765aea54664f636b18e120dae5f0ed4ac364db.resume': Too many open files (24) (variant.cc:1102)
[2024-06-23 14:21:15.581] ERR variant.cc:1102 Couldn't save '/volume1/@appdata/transmission/resume/076eda0a63bf98c6efee7e0b770dd52c709d0d74.resume': Too many open files (24) (variant.cc:1102)
[2024-06-23 14:21:15.582] ERR variant.cc:1102 Too many messages like this! I won't log this message anymore this session. (variant.cc:1102)
[2024-06-23 20:16:33.580] WRN session-id.cc:74 Couldn't create '/tmp/tr_session_id_oliLKF4AMJMN6wS5f4r4TgS4aNHHg20s6hEkmMJvBJOviW3o': Too many open files (24) (session-id.cc:74)
[2024-06-23 21:16:36.570] WRN session-id.cc:74 Couldn't create '/tmp/tr_session_id_HS2b9duvpdIIwV4qCqi3SD5RRWe34lxrzVHL27iseO7PzA2K': Too many open files (24) (session-id.cc:74)