[1.21.1] Mods fail to load with quark installed

[MissileMann]

Hi, so I was trying to add quark into a custom modpack for 1.21.1 neoforge. When booting it gives me errors saying 11 mods failed to load. Here are those logs:

crash-2026-03-04_01.54.41-fml.txt

log-2026-03-04_01.54.41-fml.log

Then after going through and disabling all of them to see if the game would load, it would give a different set of errors. Here are the second set of logs:

crash-2026-03-04_01.49.45-fml.txt

log-2026-03-04_01.49.45-fml.log

Neoforge - 21.1.219
Quark-4.1-474
Zeta-1.1-39

[Partonetrain]

Sinytra Connector is present in both of these logs, please try without it.

[MissileMann]

Ok, so i disabled sinytra connector and tried with everything else enabled again:

crash-2026-03-05_12.26.14-fml.txt

log-2026-03-05_12.26.14-fml.log

Then i disabled the mods that had warnings and got a similar thing as before

crash-2026-03-05_12.29.24-fml.txt

log-2026-03-05_12.29.24-fml.log

[Partonetrain]

Might be related to #5468