The game crashed whilst rendering overlay Error: java.lang.RuntimeException: java.io.IOException: Cannot deserialize FormatVersi

[bardikitty]

Good evening! I tried to launch my modpack that I have been using for months now, but it started crashing in the same spot every time I tried to load it today. It would launch, go fullscreen, show the Minecraft logo screen for a second while it loads, but then it crashes.

The crash report - https://pastebin.com/SnK1uqb6

I thought it might be Geckolib, so I disabled that. It didn't crash, but one of my mods needed the lib to work, so I couldn't go further. I tried disabling both mods, but it started crashing in the same spot again. I have also tried deleting the "AppData\Roaming\.minecraft\config\forge-client.toml" file from someone else's post that seemed to be similar to my issue, but that didn't do anything either.

Thank you for your help!

[TileEntity]

Make a test without the xaero mods, supplementaries and modernfix

[bardikitty]

I think I figured out what the issue was. Decoration Delight Refurbished was updated last night, which I think broke it, because they had another update today and now it's fixed.

Why/How it broke it I have no idea, but they figured it out.

Thank you for your help!!