Dynamo doesn't open in Revit

Greeting,

I tried to open Dynamo in Revit today. unfortunately, it doesn’t work today. I have check the dynamo window, but it doesn’t show up.

Has anyone met the same problem? Thank you for your help!

Likely it opened on a portion of a monitor which no longer exists as you have a new configuration or resolution.

Hit alt + tab to find Dynamo in the list. Then hit alt space bar m, which will start the move window command. Then hit left arrow key and then move your mouse.

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We just updated to Revit 2026.3 and now our dynamo will not launch either.

Update - For us if we disabled the AVAIL for Revit addin, Dynamo would launch. Thankfully 2026 added the nice Addin Manager that made that easy to do.

You have an add-in or other tool which is in conflict with Dynamo. Disable all your Revit add-ins and Dynamo packages to identify if this fixes the issue. Once done enable them in small groups until you find the conflict.

Once identified, updating the add-in to the latest version will usually resolve the issue, and if not let the add-in provider know so they can update on their end.

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It was AVAIL - I have contacted them to let them know and hopeful find a solution.

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Thank you for your advice. I have tried, unfortunately, it seems like it isn’t the cause.

Wonderful. Thank you so much. Yes, it works. You saved my life:)