Compressed Blocks mod causes multiplication overflow in recipe packet

[LazyDope]

Describe the bug

Having this library installed alongside a compressed blocks mod with a high compression factor (in my case CB: Compressed Blocks by Sashiro) causes network packet errors that make worlds unjoinable in singleplayer or multiplayer. This is due to a multiplication overflow in the add function of com.petrolpark.core.recipe.compression.FinishableMapItemCompressionSequence, specifically the fraction calculation line. There have also been some cases where the world loads, but the recipe packet is still never received, and as such the recipe book and other recipe viewers (such as EMI) do not work.

To Reproduce

1. Use NeoForge for 1.21.1
2. Install Petrolpark's Library
3. Install CB: Compressed Blocks
4. Create/Join Singleplayer World
5. See error/recipe book issues

Expected Behavior

Should be able to join world without issue and receive recipe packet

Screenshots

System Information

• Minecraft 1.21.1
• NeoForge 21.1.179
• CB: Compressed Blocks 1.7.2

Additional context

disconnect-2025-06-13_16.59.17-client.txt

Minecraft Username
ByrontheEngineer

[petrolpark]

Noted, I will switch to BigFraction.

[petrolpark]

Have not switched yet but it will no longer crash (as of 1.4.11).

[DaytonaBlep]

I won't create a new issue, but in case anyone encounters this, i must add that the same compatibility error occurs when using Create Compression with Petrolpark's library 1.4.26 on 1.21.1 neoforge.

disconnect-2026-01-29_23.49.17-client.txt