New Copilot Studio Workflows canvas, the designer crashes as soon as I try to insert a value into the Property field of the Filter array node.

Question

New Copilot Studio Workflows canvas, the designer crashes as soon as I try to insert a value into the Property field of the Filter array node.

app demo user 0

In the new Copilot Studio Workflows canvas, the designer crashes as soon as I try to insert a value into the Property field of the Filter array node. It shows the error: "Something went wrong. The designer hit a problem. Try again, or reload the page if it continues." This happens every single time, even after clicking Retry and reloading the page. User's image

Prasad-MSFT 10,546 Reputation points Microsoft External Staff Moderator

2026-09-04T06:15:25.45+00:00
This sounds more like a Copilot Studio Workflows designer issue than a problem with your flow logic.

A few things to try:

Test in an InPrivate/Incognito browser session.

Try a different browser (Edge vs Chrome).

Check whether the issue occurs only for a specific Filter array action or in a brand-new workflow as well.

Try selecting dynamic content first, then editing the Property field, as some preview experiences have issues with manual entry.

Open browser Developer Tools (F12) and look for errors in the Console/Network tabs when the crash occurs.

If it reproduces consistently in a new workflow and across browsers, it is likely a product bug in the new Workflows canvas rather than a configuration issue.
app demo user 0 Reputation points

2026-09-07T05:03:29.6566667+00:00

Yes, I’ve tried testing it in multiple browsers, including Firefox, Chrome and a new Incognito/InPrivate session, but I’m still experiencing the same issue. The problem occurs consistently across the different browsers.

Your answer

Prasad-MSFT 10,546 Reputation points Microsoft External Staff Moderator

2026-09-04T06:15:25.45+00:00

This sounds more like a Copilot Studio Workflows designer issue than a problem with your flow logic.

A few things to try:

Test in an InPrivate/Incognito browser session.

Try a different browser (Edge vs Chrome).

Check whether the issue occurs only for a specific Filter array action or in a brand-new workflow as well.

Try selecting dynamic content first, then editing the Property field, as some preview experiences have issues with manual entry.

Open browser Developer Tools (F12) and look for errors in the Console/Network tabs when the crash occurs.

If it reproduces consistently in a new workflow and across browsers, it is likely a product bug in the new Workflows canvas rather than a configuration issue.
app demo user 0 Reputation points

2026-09-07T05:03:29.6566667+00:00

Yes, I’ve tried testing it in multiple browsers, including Firefox, Chrome and a new Incognito/InPrivate session, but I’m still experiencing the same issue. The problem occurs consistently across the different browsers.