We have identified an issue for a small subset of users who are on the Windows operating system and also have their network traffic routed through a proxy.

A temporary solution to this issue is the following:
1. Open up PowerShell
2. Copy and paste the following commands:

cd "C:\Program Files\Adobe\Adobe Illustrator 2026"
$env:WEBVIEW2_ADDITIONAL_BROWSER_ARGUMENTS = "--use-system-proxy-resolver"
& '.\Illustrator.exe'

This command navigates to where Illustrator is installed and informs the application to use the system's proxy settings, then opens Illustrator.

Please reach out and let us know if any of the mentioned troubleshooting steps have helped solved your issue. We're committed to resolving this issue and your feedback is very important to us. Thank you!

In addition to verifying network configurations and firewall settings, please ensure that the following process on your operation system is allowed to operate unencumbered/not blocked:

Windows: "msedgewebview2.exe"
Mac OS: "<Application name> Web Content" (example: Adobe Illustrator 2026 Web Content, Adobe Photoshop 2026 Web Content, Adobe InDesign 2026 Web Content)

Please reach out if the issue persists. We are committed to resolving this issue in a timely manner. Thank you very much!

Hi Bárbara!

My name is Connor and I am a software engineer who works on the Open functionality in Illustrator. I have some additional information that may help in resolving the problems you are seeing.

First, I’d like to check your network settings. Our network guidance page was recently updated (please see: https://helpx.adobe.com/enterprise/kb/network-endpoints.html), and it now says that shared-components.adobe.com must be allowed through all firewalls and DNS filters.
Please confirm or ask your IT Administrator to confirm that this sub-domain is allowed for all Adobe applications used in your organization.

Second, please try opening the Asset Browser in a few other Adobe products. We want to know if adobe.com/files loads correctly in your computer’s default web browser (Safari on macOS, Edge on Windows).
Also, please check if the Files tab opens correctly in the Creative Cloud Desktop app. A screenshot of the steps is included below if needed.

If one or both of these tests fail, it likely means the issue is caused by your network settings.

I want to assure you that our Engineering team is actively looking into this problem and intends to resolve it as quickly as possible. We apologize for the inconvenience and frustration it may have caused.

Thank you!
-Connor

Hi Bárbara, my team work on this area of the application. Would you be available to join a debug session to help us better understand and fix the issue you're seeing? If so, please email me at boag at adobe.com to set up a time.

Hi, thanks for the suggestion. I checked and my Safari was already up to date.

The problem continues: when selecting File > Open… the dialog takes several seconds (sometimes minutes) to appear, and if I press Cmd+O again, Illustrator opens multiple blank overlapping windows that don’t load any content.

Additionally, the behavior is intermittent.
Sometimes the Open… dialog appears immediately, but other times it doesn’t.

Bárbara, can you try updating Safari browser to latest version/update and let us know if that resolves the issue?

I’m not fully sure when the issue started, but it seems it began after updating Adobe Illustrator to version 30.0. I also recently updated macOS to Tahoe, so the problem may be related to one of these updates. I can’t confirm the exact trigger.

Dragging and dropping files does work, but it’s not a practical workaround for me because most of my files are stored in Adobe Cloud, so I depend on the Open… dialog to access them. That dialog is the part that takes several seconds or minutes to appear and sometimes opens multiple blank overlapping windows.

Bárbara, when did is start happening? After the upgrade to Tahoe? After upgrading Ai?
Are you still able to open files with drag-n-drop?