Photoshop 2026 - Filter Dialog Boxes Not Opening

I'm having a problem with several filters in Photoshop 2026. My document is set to RGB Color, 8 Bits/Channel, so it meets the requirements for these filters to work.

The filters are not grayed out or disabled in the Filter menu. They are available and can be selected, but when I click them, their dialog boxes simply do not appear.

For example:

• Smart Blur: the dialog box does not open.
• Radial Blur: the dialog box does not open.
• Median: the dialog box does not appear, and the filter is immediately applied to the image at what seems to be maximum intensity.
• Distort filters: none of the ones I've tried display their dialog boxes, so I cannot adjust their settings.

I also have plenty of free scratch disk space, approximately 300 GB.

The main issue seems to be that Photoshop recognizes these filters as available, but is either skipping or failing to display their configuration dialogs.

What could cause filter dialog boxes to stop appearing even though the filters themselves are enabled? Is there a preference, setting, GPU issue, corrupted configuration, or other known problem that could cause this behavior?