Canyon map crash

Hi, I have a problem with crashing game on map Canyon T13. Both times problem happens when I try to kill map bosses (probably Gnar, Eater of Carrion(at near 50% of his hp). In first case, when I tried return to map again, the message appears "Failed to join any instances". In second, portals were closed after restarting the game.

I have a few steps that may help you, you can try anytime:

- Update your graphics drivers - crashes can sometimes happen due to driver issues, so make sure you are running the latest drivers for your GPU.
- Lower your graphical settings - try turning down settings like shadows, textures, and lowering the resolution to see if that helps stabilize the game.
- Validate/repair game files - go into your game launcher and validate or repair files to fix any corrupted data.
- Close background processes - close any unnecessary programs running in the background that could be hogging resources.
- Disable game overlays - overlays from platforms like Steam, Nvidia, Discord etc can sometimes interfere and cause crashes.
- Update Windows - make sure you are on the latest version of Windows and have installed the latest updates.
- Clear game cache - delete cached temporary files for the game, which can eliminate some bugs.
- Check for game patches - an update or hotfix may address issues with that specific map and boss battles.
- Reinstall the game - if nothing else works, backup and do a clean reinstall of the game as a last resort.
geometry dash
Hopefully one of those suggestions helps resolve the crashing issues you're experiencing on that map.

No, it can't be client problem(and i made what you told). I just play this map twice. First time rare map and it worked perfectly. And second time corrupted rare. It crash again. But all the loot from this map in my inventory disappeared. Like I never played this map ever