Modpack Version

1.21.1

Describe the issue

I'm trying to download this modpack on my macbook air M3 and for some reason i cannot get it to work properly. I am kinda new to downloading modpacks onto my macbook so it could be user error but I was wondering if someone could point me in the right direction.

you need to install a better java build, this is a very common problem on MacOs, the standard Java install is pretty crappy. I recommend going to adoptium.net and find the latest Temurin build of Java. Shouldn't be too difficult, good luck.

I'd like to add some more info, as I'm also experiencing issues that prevent me from even starting this modpack. What's important, the vanilla Minecraft (the same version) runs fine. I've also tried running another similarly-sized modpack (Craftoria, latest version) and it also loaded without issues. So this seems to be ATM-specific.

OS: macOS 15.1.1 (24B91)
Device: MBP 2021 with Apple M1 Pro Chip, 32 GB RAM
JRE: OpenJDK Runtime Environment Temurin-21.0.5+11 (build 21.0.5+11-LTS) (CurseForge is configured to use this binary + this is the default system binary)

Minecraft version: 1.21.1
Neoforge: 21.1.90
ATM 10 versions I've tested and experienced the issue with: 2.6, 2.8, 2.9

Steps to reproduce:

1. Wipe the contents of minecraft to clear after previous installations of MC and modpacks, cache, etc.
2. Open CurseForge
3. Do a fresh installation of Minecraft
4. Ensure the following config:
   • Java 21 points to Temurin OpenJDK
   • RAM allocated: 10GB
   • The rest is set to defaults
     
5. Do a fresh installation of ATM 10
6. Run ATM 10
7. Minecraft starts loading (the red loading screen) and gets to almost complete:
   
8. At this point the process freezes. I've let it stay like this for half an hour once, just to see if it unfreezes at some point, but no luck. All I can do now is kill it.
   

Here are the logs attached:
latest.log

The last logs are always those:

[23Dec2024 11:32:50.289] [Render thread/ERROR] [packmenu/]: Failed to load button atm:github.
[23Dec2024 11:32:50.289] [Render thread/ERROR] [packmenu/]: Failed to load button atm:akliz.
[23Dec2024 11:32:50.289] [Render thread/ERROR] [packmenu/]: Failed to load button atm:options.
[23Dec2024 11:32:50.289] [Render thread/ERROR] [packmenu/]: Failed to load button atm:reddit.
[23Dec2024 11:32:50.290] [Render thread/ERROR] [packmenu/]: Failed to load button atm:multiplayer.
[23Dec2024 11:32:50.290] [Render thread/ERROR] [packmenu/]: Failed to load button atm:mods.
[23Dec2024 11:32:50.290] [Render thread/ERROR] [packmenu/]: Failed to load button atm:quit.
[23Dec2024 11:32:50.290] [Render thread/ERROR] [packmenu/]: Failed to load button atm:singleplayer.

Solved!

PackMenu mod was the culprit - for some reason it was unable to load those buttons, which crashed the game. I don't know why. But disabling this mod solved the issue and the game loads without any problems now.