Luis_ST

You find the debug.log in the logs folder of you .minecraft folder. You can use a past website like https://pastebin.com/

Please post debug.log from the logs folder. In is some launchers you need to enable the debug.log in the settings.

Could you please provide more details, the full Entity class would be helpfull.

The simple answer is that you have to render your model (i.e. what you want to display via the layer). If you are having problems with GeckoLib or anything related to it, I would recommend asking for help on their Discord server, as I am not familiar with GeckoLib at all.

The answer is the same, it's an issue with Architectury make sure you are using the latest version. If you already use the latest version talk to the mod author of Architectury. Note mixin issue as in your case can differ in IDE and Minecraft itself.

Please post the EntityRenderer of your custom Skeleton

Sorry, but can you explain that again I don't really understand what exactly your problem is.

It looks like your server is not reachable, check the IP and settings of the firewall or antivirus.

Please post the renderer of your custom Skeleton

Then use a different version of Architectury when playing. Or there is a mixin conflict beween two mods, could you please post full debug.log?

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Please post debug.log from server and client.

The PlayerRenderer is handled seperated from all other Entity Renderers, you can get i from EntityRenderersEvent$AddLayers#getSkin.

Show the updated RenderLayer class.

Architectury has a broken mixin, if it's a dependency you are using make sure the version is compadible with th version of Forge your are using. If you are the author of architectury your MixinMinecraft is invalid.

Could be an confict between Saturn and OptiFine.

One of your mods has a broken network packet, make sure all of them are up to date. Please add -Dforge.logging.mojang.level=debug to the JVM arguments of your Launcher. Launch the game and produce the error, then post debug.log from the logs folder. Vanilla Launcher: Launcher -> Installations -> Edit the Forge Profile you are using -> More Options -> Add the Argument to the JVM Arguments.

Problem with [ETF] Entity Texture Features. Make sure you are using the latest version. If the Mod is already up to date, talk to the Mod author. Please post next time the full crash-report.

Please post debug.log from the logs folder. In is some launchers you need to enable the debug.log in the settings.

Duplicated thread.

Those mods, rewrite many game functions which are may used by other mods which then causes conflicts. I should also note that this does not include all mods, but the easiest way to avoid those errors is to avoid these magic performance mods.

Exactly. The EntityDataAccessor should look like this: SynchedEntityData.defineId(Chicken.class, /*...*/)

Please post the debug.log

You already done it. If you have any questions about GeckoLib or anything related to it, you should ask them

Have you checkout the StructureBlockRenderer to take a look at how vanilla renders lines?