[Bug]: Randomly disconnected from singleplayer world and kicked to multiplayer screen

[shade1822226911]

Possible Fixes

Yes

Modpack Version

1.16

What happened?

Rarely, when I'm playing atm10 and I tab out for any reason, there's a small chance I just get disconnected for some reason.

This has been happening since 1.1 i think?? but it's so rare it's only happened like 5 times.

It's got something to do with Failed to encode packet 'clientbound/minecraft:set_equipment' though, and it only seems to happen when i equip my Mekasuit although I can't confirm that since I wear it all the time.

Also for some reason I need to restart the game every time I exit the world to rejoin since the world disappears from the world select screen whenever I leave for any reason, any fixes for that would be appreciated.

EDIT: I noticed it happens more often when I get hit by a Modular Router set to attack mode via an Activator Module.
Coincidence?

latest.log

https://gist.github.com/shade1822226911/27ae3bd3181c46674fde6c57daa70443

Developer reports

No response

[Spulcr]

+1 same issue

[wzx9911]

+1 same issue

[shade1822226911]

+1 same issue
turns out it happens even when i'm not tabbed out, it just happens for no real reason

[bortoliotavio]

Same here

[rikaakiba]

Seems related to mob spawning in my case, if I either turn off my spawner mob farm or stay away from it I don't get the error anymore.