Which software were you running?

• Addon version name: Wotlk 10.1.12
• Client used: [e.g. Vanilla 1.14.4, Retail PTR x.x.x, etc]

Have you read the changelog?
Mark if read.

Please describe the bug.
You used to stack items now, it just sorts but doesnt stack, Like 10 cloth here and 2 there it wont add them together anymore

Please describe how to reproduce it.

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Any Screenshots?
If applicable, please add screenshots to help explain your problem.

Error Logs are Important!
Type /console scriptErrors 1 in the chat and reload the game. If an error window appears when reproducing the bug, please write here the first message (labelled 1/Many) that appeared. ⚠️ By default, the last error message is shown, not the first! You need to navigate back to the first error.