Inconsistency between endAdornments on TextFields and endAdornments on TextFields which are renderInputs

[wbosley]

Steps to reproduce

Steps:

1. Open this link to live example: (required)
2. See how endAdornment on renderInput TextField of the autocomplete is positioned at the carat, whereas on the TextField on its own it is vertically centered.
3. Add or remove items from Autocompletes to see alignment being problematic.

Current behavior

Multiline TextFields normally have their endAdornments vertically centered (see the example): TextFields which are the renderInput of an Autocomplete are an outlier, with their adornments in an inconsistent place. How can I ensure consistency between endAdornments for both scenarios?

Expected behavior

Either the TextFields should have consistent endAdornment behavior, or we should be able to customize the behavior.

Context

Trying to vertically center a button on the right hand side of a multi line, multi select autocomplete

Your environment

npx @mui/envinfo

This is running in an Electron app.

  System:
    OS: Windows 11 10.0.26100
  Binaries:
    Node: 22.8.0 - C:\Program Files\nodejs\node.EXE
    npm: 10.8.3 - C:\Program Files\nodejs\npm.CMD
    pnpm: Not Found
  Browsers:
    Chrome: 141.0.7390.108
    Edge: Chromium (140.0.3485.54)
  npmPackages:
    @emotion/react: 11.14.0 => 11.14.0 
    @emotion/styled: 11.14.1 => 11.14.1 
    @mui/core-downloads-tracker:  7.3.4 
    @mui/icons-material: 7.3.4 => 7.3.4 
    @mui/lab: 7.0.0 => 7.0.0 
    @mui/material: 7.3.4 => 7.3.4 
    @mui/private-theming:  7.3.3 
    @mui/styled-engine:  7.3.3 
    @mui/system: 7.3.3 => 7.3.3 
    @mui/types:  7.4.7 
    @mui/utils:  7.3.3 
    @mui/x-data-grid:  8.14.1 
    @mui/x-data-grid-pro: 8.14.1 => 8.14.1 
    @mui/x-internals:  8.14.0 
    @mui/x-license: 8.14.1 => 8.14.1 
    @mui/x-telemetry:  8.14.1 
    @mui/x-virtualizer:  0.2.4 
    @types/react: 19.2.2 => 19.2.2 
    react: 19.2.0 => 19.2.0 
    react-dom: 19.2.0 => 19.2.0 
    typescript: 5.9.3 => 5.9.3 

Search keywords: autocomplete endAdornment inputAdornment adornment TextField

Order ID: 109405

Search keywords:

[zannager]

@wbosley I moved this since it's not an MUI X-related issue. This should be under the Material UI repo.