[MC-268857] Loading item with stack size outside of range 1-64 completely disregards item

Trying to load a previously stack size of 64 for unstackable items gives this:

[21:36:03] [Server thread/ERROR]: Tried to load invalid item: 'Item stack with stack size of 64 was larger than maximum: 1'

Instead of limiting the count to the max_stack, it just does not load the item at all.

Steps to reproduce:

Use an older version of Minecraft to generate an item stack with more items than max_stack_size.

E.g. 64 diamond swords. Make sure this item stack is inside a shulker box or bundle.

In 24w09a, load the world. Your item stack will be gone.

I have not confirmed this in scenarios such as enderchest, or directly in inventory, saved hotbar, chests or other inventories.

Linked issues

Please provide clear steps to reproduce and confirm the described issue.

@Jiingy hope this suffices.

Thank you for clarifying, this seems to be the same as MC-268801 (this issue was made a day sooner, but Mojang has already looked at the other issue)

Thank you for your report!
We're tracking this issue in MC-268801, so this ticket is being resolved and linked as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.

Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support (Technical Issues) – 📧 Microsoft Support (Account Issues)
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
_{-- I am a bot. This action was performed automatically! The ticket was resolved by one of our moderators, and I left this message to give more information to you.}