Leaf-exclusive plugin malfunction

[SynkMC]

Checklist

• [x] I have searched the existing issues and the documentation
• [ ] I ticked all the boxes without actually reading them
• [x] I am using latest Leaf build from https://github.com/Winds-Studio/Leaf/releases
• [x] I tested and couldn't replicate this issue on latest Purpur build

What behaviour is observed?

Hi, I'm the developer of the AuctionHouse plugin "NexusAuctionHouse". Some users have been reporting a duplication issue with the plugin which only occurs on Leaf: when a player takes down their listing, it will often stay listed on the Auction House and still be given to the player. I don't know why that happens. Instead of just saying the plugin isn't compatible with Leaf, I'd like to find a fix. Here's the link to the GitHub if someone wants to try and find the issue there so I can fix it. Thanks. Link here

What is the expected behavior?

No duplicaiton like on every other software.

How to reproduce?

1. Put an item up for sale
2. After waiting a bit, unlist the item (right click)

Spark profiler link

None

Error log (if applicable)

No response