Starting with 24w14a, Mojang has quietly fixed this bug to an extent where game crashes no longer happen. This mod has ceased to be relevant, so support for it is discontinued.

Bundivision

This mod remedies MC-269644's trouble spot by forcing bundle'd inventory items to count with a weight factor of at least 1 unit each. It fixes things as long as versions start on or greater than 24w12a and go through whatever date the official development patch gets released.

In broad terms, this particular crash was happening for easy to summarize layout reasons.

More narrowly summing calculation breakdowns would yield normal weight schemes depending on maximum stacking specificities the mod watched out for.

Where stack amount could go really high mathematically, the old programming arithmetic, owing to integer based specifics, spat out zeros even by mistake mathematically where don't ever dare how you assign due very possible dividing by zero case to not die into unforeseen ArithmethicException tragedy.

Simply put, instead of letting perfect reachables crash user experiences cold dead brutally too often, like some solution maybe at meh yes we force outcome weight floor of exactly 1 plain clear stop asking possible odd range bundles handle better; One better than crash suffer must leave alone someone explain huh.

Likely craft ability in from code elegance lies there fixing official better when only time passes awaits vanilla; The Band-Aid equals no crashing always only success certain here now literally.