Friday, September 9, 2022

"Failed to deserialize Flow" error in Power Automate for desktop [MS]

Symptom

In Power Automate for desktop version 2.14, users cannot edit or run desktop flows with error message "Failed to deserialize Flow".

Cause

The desktop flow contains disabled actions that have been copy/pasted.

Affected actions are:

  • If Image

  • If window

  • If window contains

  • If webpage contains

  • Wait for image

  • Wait for window

  • Wait for window content

  • Wait for webpage content

There is a bug when deserializing the pasted script, and a DISABLE statement gets inserted which causes the flow to fail to deserialize.

Resolution

Update Power Automate for desktop to version 2.14.217.21314 or later. A new version that resolves this issue was released on 17th of November 2021.

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