Add user to list modal often appears above the mobile viewport sceen

[Lilly]

Overview

Mobile view dropdown list modals for adding users seem to often end up out of screen view and then fail when attempting to swipe down to see it.

Some of the places i have reproduced this in safe mode are:

• adding users to groups from group page
• assigning a topic or post to a user (eg: from topic wrench menu or post admin wrench menu)
• invite other users to an existing PM (can repro on meta)
• adding users to ignore on preferences page /my/preferences/users (can repro on meta, but mute works fine because there is no modal for the dropdown)

Occasionally, after a few attempts at swiping down gently, i can get sometimes get the modal to stay in view, but it’s very finnicky and usually just closes or goes back above the screen view. Also worth noting that i am using a large phone screen - iPhone 15 pro max - so the effect may be even worse on smaller mobile models.

Steps to reproduce

Here is an example of a failed attempt at filling the dropdown list to add users to a group:

1. go to a group page as admin and tap the + Add Users button
2. see the modal at the bottom of the screen with the search field
3. tap the search field to type and watch the modal go above the viewport
4. attempt to drag modal down to type in the field
5. fail - modal closes automatically and goes back to group membership page.

Expected result

Modal stays in view. Note that the similar modal for changing post ownership from the post admin menu works as expected:

Observed result

See above steps to reproduce - the user search input field is out of view because the modal is too high in the viewport.

Additional info

• on latest Discourse version 2026.4.0-latest (866ae39d46)
• i am using an iPhone 15 pro max (iOS 26.4.1) and can reproduce the above in safe mode with latest Safari, Chrome and Firefox (and PWA). No repro on iPad though, landscape or portrait orientation. Have not confirmed Android mobile yet.
• occasionally i can get it to work if i rotate my mobile to landscape mode but this makes the input screen very narrow and the touch keyboard awkward to use.
• using the mobile mode in desktop browser dev tools will not reproduce the issue; i can only repro on my mobile device
• i don’t know if this is Discourse or iOS related, but i assume Discourse since the change post ownership modal seems to work as expected.