crash open #637

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1. SrNadien

   added

   unverifiedIssue needs to be verified beyond initial report, or due to an old version.Issue needs to be verified beyond initial report, or due to an old version.

   triage

   21.1Relates to CM7 for MC 21.1Relates to CM7 for MC 21.1

   on Oct 18, 2025
2. DirkBreek commented on Oct 22, 2025

   

   DirkBreek

   on Oct 22, 2025

   More actions

   I have run into the same problem on

   Mod Version
   7.0.22

   Neoforge Version
   21.1.212

   Not using any other mods because i wanted to test if it was a problem caused by another mod.

   How to reproduce crash:

   1. place any compact machine
   2. load the compact machine by going into it (does matter if i place block or not)
   3. exit the compact machine and try to preview what's inside the compact machine by right clicking with an empty hand
   4. it crashes when trying to load the preview

   Link to crash log:
   https://mclo.gs/2gOwzKK
3. robotgryphon

   closed this as a duplicateof Game crash when opening F3 menu in a compact machine #638 on Dec 24, 2025
4. Appulcake commented on Jan 7, 2026

   

   Appulcake

   on Jan 7, 2026

   Last edited by Appulcake

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   @robotgryphon is this really a duplicate of the opening F3 in a compact machine crash (#638)? This seems different to me and is also occurring to a lot of people in various FTB packs, and is related to room previews being loaded (possibly based on contents of the room), like our issue at FTBTeam/FTB-Modpack-Issues#10714. The (only) workaround for this is to set config/compactmachines-client.toml => enableRoomPreviews to false.

   #638 got closed as fixed as of 7.0.78, but this specific issue is still happening with that mod version, and is not related to pressing F3 at all.

   Example crash log:

   StoneBlock 4 crashed. The logs have been uploaded to gnomebot.dev:

   latest.log | debug.log head / tail (~11MB & ~58k lines) | crash-2026-01-07_22.31.53-client.txt | PrismLauncher-0.log | KubeJS: client.log / server.log / startup.log | crash_assistant_app.log | modlist.txt

   Please consider re-opening this issue.