Power Platform Community Forum Thread Details

Unattended flow

Hi, Im running a power automate desktop flow unattened on a virtual machine using power automate online the flow has only 2 actions, a reacurrance (every hour) as trigger and run desktop flow (consists in refreshing a power BI report and exporting a csv from it) this was running without any issues in version 2.55.158.25087 version of power automate desktop, but when i updated to 2.56.232.25124 it started failing everytime, the error was "failed to assume control of the browser" and now on the version 2.56.239.25132 it gets a mix of random runs (successful/failed) and when it fails is on action "press a button on webpage" this only happens while running the flow unattended, if i login in the virtual machine and run it has no errors.

I have "wait" actions throughout the flow to avoid not having the elements displaying, tried to add "wait for webpage content" nothing worked...

I have premium licence and unattend and the UI elements all checked to be workin properly.

Is this a known performance issue? Is there something that can be done to fix this?

Categories:

Process Advisor

Have you checked the failed runs screenshots? It should always produce a screenshot of the failed action where you can see if something is off with the virtual machine. So go to Desktop flow runs > select last failed run > select the last action that failed so you see the screenshot that was captured

Some times the resolution is by default much smaller on unattended run than in attended run. Especially when updating the PAD / machine the unattended resolution settings might go back to default even if you have set them to be 1920x1080 for example.
Article how to set the unattended resolution: https://learn.microsoft.com/en-us/power-automate/desktop-flows/how-to/set-screen-resolution-unattended-mode

With the error "failed to assume control of the browser" I would check that the browser extension is up to date. Try to update your browser also to see if that fixes it. Or try with different browser like (edge, chrome, firefox)

If those don't work then just roll back to the version 2.55.158.
You can download the version here thanks to @jfevia: https://github.com/jfevia/Power-Automate-Desktop/releases?page=1

Quick Links

Leaderboard > Power Automate - Power Automate Desktop