I’m experiencing an issue with the Magento 2 admin panel (version 2.4.x) where the layout or sidebar menu collapses or breaks unexpectedly on a desktop resolution of 1920×1080. The client reports that sometimes the admin dashboard UI appears “collapsed” or not fully expanded, making navigation difficult.
Details:
Magento 2 version: 2.4.x
Admin theme: SwissUp (custom admin theme)
1-2 custom admin extensions installed
Issue occurs on normal desktop monitors (1920×1080)
Collapse/auto-collapse happens without user action, sometimes on resizing or just loading the admin page
Browser zoom is 100%
Tested on Chrome and Firefox with same behavior
No visible console errors or CSS/JS issues
Windows scaling set to 100% on client’s monitor
Is the Magento 2 admin panel fully responsive at desktop resolutions like 1920×1080? Could this behavior be caused by the SwissUp admin theme or custom extensions? Has anyone encountered this issue and found a fix or workaround to prevent automatic sidebar collapse?
Thanks in advance!