• Minecraft Version: 1.18.1
• Forge Version: 39.0.19
• Pack Version: 0.2.26
• A crash log if the game crashed, or latest.log file otherwise: crash-2022-01-17_12.40.50-client.txt
• Steps to reproduce the issue: 1. Play All The Mods 7 with CurseForge, including the Blue Skies mod. 2. Enter the Everdawn dimension and wander over to a Wizard Tower structure. 3. Venture to the top of said tower. 4. Search for additional keys lower in the tower. (I don't know. Maybe have some fully enchanted Unobtanium armor with a sword to fight the enemies) 4. It should say "Saving world..." then CRASH to desktop. 5. Attempt to restart the game in the Wizard Tower, CRASH again after around half a minute.
• A list of mods installed. If it's a modpack that you can link to, like with CurseForge, a link will be enough. Depending on the issue, this may not be needed, but please be prepared to provide this information if you chose not to now: All The Mods 7: https://www.curseforge.com/minecraft/modpacks/all-the-mods-7 with WorldEdit and Flat Bedrock included as custom additions.
Apparently, the issue is with Beyond Earth, but the sounds from that mod are making their way into Blue Skies to cause this crash.

This should have been fixed in .30 already. Update your game and see if it still happens.