For a comprehensive list of other examples of issues with item positions in the Creative inventory, click here.

All tickets associated with item placement in the Creative inventory are valid for cases introduced in 1.16 and later as per this comment. Exceptions exist, which are valid for their own reasons.

The bug

Currently, the Creative inventory groups tinted glass with normal glass. While likely intended, this means that tinted glass is a considerable distance away from stained glass, which it is functionally closer to (being translucent rather than transparent).

How to reproduce

1. Open the Creative inventory
2. Locate Tinted Glass in Building Blocks
3. Locate Stained Glass in Building Blocks
4. Note that there is a considerable distance between these items