# Very strange dropdown menu behaviour

**URL:** <https://forums.realmacsoftware.com/t/very-strange-dropdown-menu-behaviour/51433>\
**Category:** Elements\
**Created:** [September 30, 2025, 7:03pm UTC](https://forums.realmacsoftware.com/t/very-strange-dropdown-menu-behaviour/51433 "2025-09-30T19:03:08Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![dan](https://dub1.discourse-cdn.com/flex005/user_avatar/forums.realmacsoftware.com/dan/32/28516_2.png) [@dan](https://forums.realmacsoftware.com/u/dan)\
**Post date:** [September 30, 2025, 7:06pm UTC](https://forums.realmacsoftware.com/t/very-strange-dropdown-menu-behaviour/51433/2 "2025-09-30T19:06:48Z")

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Thanks for the video, that looks like a z-index issue to me. Not an Tahoe issue.

There’s a few ways to solve this, but first can you try setting the menu `Layout > Z-Index to 31`, and setting it to `Isolate`.

 ![CleanShot 2025-09-30 at 8 .04.13@2x](https://europe1.discourse-cdn.com/flex005/uploads/realmacsoftware1/original/3X/a/d/ada5627e9c937dfe8abb27b97a4b7a03c7254c46.png)

@elementsbot explain z-index in web design!

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