base64ToBinary expression does not save

[ppei]

I created a flow to upload files from Power Apps. I used ask Power Apps action to get  file name and content. For content, I used this expression - base64ToBinary(triggerBody()['CreatefileFileContent']). But this expression will not save even I saved it. While I was working on the flow, I could test it successfully. But whenever I saved and reopened the flow, the expression will be gone and it'll switch back to CreateFileContent default. This appears a bug. Anyone has any way to save the expression?

Thanks, in advance.

Pei

[CFernandes]

@ppei  

Can you add a Compose action above the Create action and check if the Power Apps returns you base64 content..

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[ppei]

@CFernandes Thank you for your suggestion. What input should I enter for Compose?

[CFernandes]

@ppei 

Please add the "CreateefilFileContent" in the Compose action and pasted the screenshot for the output of the action.

[ppei]

@CFernandes Below is my screenshot. Thank you!

[CFernandes]

@ppeiPlease try, the formula below:

base64ToBinary(outputs('<your Power Apps Variable>'))

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[ppei]

@CFernandes  I don't have any variables. I can only put CreatefileFileName or CreatefileFileContent. I added CreatefileFileContent and got an error when I tried to save it. Do you have any ideas?

[ppei · Accepted solution]

It is weird. I tested today and it worked. Although the formula still doesn't show in the flow, the action actually converts the file and all files are now readable again. So the issue has been resolved. I hope Microsoft can resolve the issue to display the correct formula in future.

[paulfi]

This isnt working at all for me  

i attempt this formula

base64ToBinary(outputs('Convert_HTML_to_PDF')?['body/FileContent'])

and it doesnt save

does anyone have a workaround not listed here

[seadude]

If I remember right, this is an old bug in the Power Automate UI. The editor actually **performs** the `base64ToBinary` expression, but the UI does not reflect this. I think you can open `Peek Code` and that will correctly reflect the expression. It only happens at some actions (Sharepoint, etc if I recall correctly). 

[TMerkel]

Good tip. That's actually the case. I've been having the same issues and peeking code revealed that value was indeed @{base64ToBinary()} Thanks!