Combobox scrolling (within modals) and search input focus issues in iOS 26.4 26.5

Dependencies check up

• I have verified that I use latest version of all @mantine/* packages

What version of @mantine/* packages do you have in package.json?

9.2.1

What package has an issue?

@mantine/core

What framework do you use?

Next.js

In which browsers you can reproduce the issue?

Other, I will specify in the bug description

Describe the bug

2 main issues that seem to have appeared on iOS 26.4 and 26.5 (in both safari and chrome):

1. Some scrollable combobox popovers are unable to be scrolled, when the input is in a modal.
2. combobox.focusSearchInput() either does nothing (no focus) or shows then immediately hides the keyboard.

The linked repro has a number of scenarios.

• The first 2 selects are loosely based on components in our app.
• The final select is copied from the SelectDropdownSearch combobox example, except with more items in the list and a scrollable panel.

On the root page (i.e. outside the modals):

• ✔️ all select popovers are scrollable
• ❌ the first 2 selects: the search inputs in the popover do not receive focus when opened on iOS. But you can touch them to focus and search fine.
• ❌ the last select: the search input does not receive focus when opened on iOS, and when you try to touch and focus it the keyboard appears and then disappears immediately

Inside the modals:

• ❌ the first 2 select popovers can't be scrolled. This does seem to work sometimes so try reloading and doing it again. The scroll is stuck, but it can be unstuck by long-pressing and text-highlighting an item in the select. Then it magically becomes scrollable.
• ✔️ the last select is scrollable.
• ❌ the search inputs have the same issues as they do outside the modals (see above)

Weird notes:

• for the second select (SelectWithPopoverSearch) the "scroll locked" issue seems to happen more often when the toggleDropdown is called from a nested element inside the combobox target element.
• The behavior seems to be the same in both react-modal and the mantine modal
• commenting out combobox.focusSearchInput() seems to fix the "scroll locked" issue.
• withinPortal={false} also seems to fix the "scroll locked" issue.

This issue is possibly related, seems like the same "stuck scrolling" symptom https://github.com/mantinedev/mantine/issues/8847

Apologies that this isn't more concise, just hoping that this helps someone in the same boat or helps us get closer to an actual root cause. I appreciate it's hard to stay on top of changes, especially when Apple decides to drop grenades on us in the form of iOS safari updates.

If possible, include a link to a codesandbox with a minimal reproduction

https://codesandbox.io/p/devbox/mantine-react-template-forked-2sssyc

Possible fix

Workarounds

• use withinPortal={false}
• don't use combobox.focusSearchInput()
• wait for apple to "fix" it in safari

Self-service

• I would be willing to implement a fix for this issue