This issue is very common while uploading the data to knowledge in Copilot Studio, This happens due to backend processing or indexing stage is failing.
which may caused by file format issues (encoding, size, scanned PDFs), or more commonly, a temporary service issue in the AI ingestion pipeline.
Due to the Dataverse Search or ingestion services were not properly provisioned this might leads to documents stay in Processing / In progress forever Sample Post .
Other Approaches
Upload the same file with a different name
Upload via SharePoint / OneDrive instead of local
To resolve it, test with a simple file, ensure proper formatting (UTF-8 CSV, text-based PDF), and try re-uploading.
Even after renaming the file with simple names and size even if that fails, its more a kind of platform/environment issue. I would suggest you to raise a support ticket withMicrosoft-copilot-studio fundamentals-supportTeam for speed up the resolution and know the fixes in details.
✅If thishelped, pleaseAccept as Solutionto help others ❤️ ALikeis appreciated 🏷️ Tag@MS.Ragavendarfor follow-ups.
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