Unable to apply Gaussian blur effect on a rectangle in Illustrator on Windows

Hi there,

Sorry about this trouble. Could you please share a few more details like:

• OS and version of Illustrator
• Please share a sample document with us in which you face this issue and upload it to the Creative Cloud (https://helpx.adobe.com/in/creative-cloud/help/share.html) & share the download link.
• When did this start happening? Are there any recent changes made to your system? For example, any antivirus, system updates, or web extensions installed recently.
• Does resetting Illustrator Preferences (https://helpx.adobe.com/in/illustrator/using/setting-preferences.html) help to resolve the issue?
  Disclaimer: Please note that resetting preferences will remove all the custom settings, and Illustrator will launch with default settings. You can also take a backup of the folders in case you want to. Location is mentioned in the article.

I will be looking forward to your reply.

Thanks & Regards,

Anshul Saini

What radius value have you selected for the blur? If it is too small it may be hard to see, particularly on a white background, and with the bounding box covering part of the area where the blur might be visible.

Peter

Please select the object and show us a screenshot of the Appearance panel. No video please.