Shift is active in inventory

Please provide a screenshot of your game while this is occurring with the F3 debug screen enabled.

This issue is only on Forge for 1.16.3, doesnt affect vanilla.

Thank you for your report!
However, this report is Invalid.

Your game is modified.
If you can reproduce the issue in a vanilla game environment, please create a new ticket - this is a bug tracker for the game, and not a support website.

Any issues occurring from game modifications need to be taken up with the appropriate team, not Mojang Studios or the Bugtracker.

Quick Links:
📓 Issue Guidelines – 🛠 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki
💬 Mojira Subreddit – 💬 Mojira Discord

ok, so I‘m on the false page...