There is an issue deserializing your AI Builder action

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Posted on by OM-07081950-0

Hi,

I'm using a GPT prompt to read a pdf document (I have also tried this with text), and classify the document into 3 types. The flow runs well the first time or a few times. But it breaks down and I keep getting this error. I have tried a lot of fixes but nothing seems to work. I have even tried a Recognize text in image or document connector that works perfectly, to deliver text to the prompt. This is so disappointing, I am looking to build an invoice processing solution that would rely heavily on prompts.

Flow Failure: Issue with AI Builder connector.: There is an issue deserializing your AI Builder action

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AndrianaO 194 Moderator on at

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There is an issue deserializing your AI Builder action

I recently encountered the same issue and was able to resolve it by switching to the old designer; everything works like a charm without any additional tweaks. Hopefully, they'll fix it for the new designer soon.

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OB-15080425-0 2 on at

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There is an issue deserializing your AI Builder action

Same issue here. Removing and re-adding didn't solve it.

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JS-13080604-0 2 on at

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There is an issue deserializing your AI Builder action

I posted a similar thread so just adding in that I have the same issue. Hopefully this gets resolved soon.

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Ronan Condon 6 on at

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There is an issue deserializing your AI Builder action

MS are aware and are pushing a fix, i receaved this last night at 9:13pm AEST.

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DF-20061323-0 2 on at

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There is an issue deserializing your AI Builder action

Same issue here. There is an issue deserializing your AI Builder action. Please return to the designer, remove the action, and then add it back again.

Pulled it out, added it back multiple times. works in test.

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CU10070821-0 6 on at

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There is an issue deserializing your AI Builder action

i have found a workaround but still it has to be fixed by Microsoft.

Once you have everything ready for you script and for your prompt save it all. Then delete the prompt action and add it back again and we need to not touch prompt itself you can add text input but dont get inside of it or you will get the same error. After you added text input field you can paste your outcome of the prompt and never touch it again. I have tested if you are not touching anything after first save especially prompt action it is working for multiple times not just once

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CU10070821-0 6 on at

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There is an issue deserializing your AI Builder action

Since 07/08/2025 when gpt5 was introduced ai prompt got this bug. Please this issue is gives a big problem with the same error. Be sure each day more people would come in with it. Please take a look at it. Delete the action doesnt help and nothing else, try it yourself multiple times and you will see. Same issue everyone has + it gives this weird item source field which has never been there. This should be resolved by Microsoft

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OM-07081950-0 14 on at

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There is an issue deserializing your AI Builder action

@TB-12081123-0

Sorry to hear that. I think we have 4 people here reporting the same issue. How many do we need for MS to take notice? :)

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