"Something is taking too long", startup issue on Sevtech ages and other packs recently.

[TheRocketier]

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Bug Description

Every time I launch Sevtech Ages it progresses through the usual loading sequence before it seems to get stuck at 'Phase 3' of loading, but the problem seems irregular.

As I've managed to launch and play fine quite a few times, I've always had it allocated to about 8-9GB of RAM and have played the modpack before comfortably just a few days ago.

Did this behavior use to work in the previous version?

Honestly not too sure.

Steps to Reproduce (for bugs)

1. Launch
2. Wait for certain point of loading

Logs

Logs.log

Client Information

• Modpack Version: 1.12.2
• Java Version: I've tried to use 17 & 8, both don't change my issue.
• Launcher Used: CurseForge
• Memory Allocated: 9120MB
• Server/LAN/Single Player: Server
• Optifine Installed: No
• Shaders Enabled: No

World Information

• Modpack Version world created in: No clue.
• Additional Content Installed: None.