A list of Celeste/Everest bugs I've encountered, and how to fix them

This is a list of bugs I’ve encountered while playing Celeste/Everest with the Olympus launcher, and how to fix them.

1

Bugged light, I can see squares with “more light”, that makes gameplay hard to see
Solution: replace OpenGL renderer with Vulkan. There are several ways to do this:

• if using Everest, you need to find everest-launch.txt (in your Celeste install folder) and change #--graphics OpenGL to --graphics Vulkan
• if using vanilla Celeste, you need to add /gldevice:Vulkan to CLI arguments (you can do that with launch options in Steam)
  Link: https://www.reddit.com/r/celestegame/comments/1bnan6m/comment/m6nly5c/?context=3
  Link 2: https://www.reddit.com/r/linux_gaming/comments/1hmrtu0/comment/m4jzvgj/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

2

Everest crashes with this error: threader.lua:544: thread#32>sharp.lua:424<utils.lua:361 not running!
This is a generic error, we need to open Olympus from the terminal to see the actual error.
In my case, this was caused by an Everest update that used the binary suppres-output, but didn’t use that binary, so we needed up update it manually
Link: https://discord.com/channels/403698615446536203/683777712115941407/1343199295322456135 (Mt. Celeste Climbing association discord)

3

Celeste freezes after 10 minutes (exactly I think ?)
Didn’t find a fix for that yet

4

Everest crashes on launch, because System.DllNotFoundException: libfmodstudio.so.10
Solution: See https://itch.io/post/12037981
TLDR: execstack -c lib64/libfmod.so.10

5

System.ArgumentException: Source method is generic, generic hooks are not supported when launching Everest (not Celeste)
Solution: Update your mods