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alexrademeyer's avatar
alexrademeyer
Brass Contributor
Oct 09, 2020
Solved

Document Library tab: Cannot upload or drag&drop files (Bug)

Hi, I have been running in circles with support and I am not getting anywhere, i need to raise my concern about a bug in MS Teams which causes your uploaded sharepoint files to be corrupt, and los...
App
Document Library
sharepoint
  • alexrademeyer's avatar
    alexrademeyer
    Oct 30, 2020

    pblbsyl 
    I finally have a useful update from Microsoft.

    This should likely close the issue off:

    Microsoft acknowledge the bug and that their product team are rolling out a solution which should be out in the next few weeks:

     

     

    Unfortunately this does not actually fix the damage done......
    This bug corrupts customer data yet Microsoft have not acknowledged it in the message center or service updates.
    Further: They have confirmed to me it is not possible to identify or restore the corrupt files- they will be lost.

     

    I see this as "solved" in some way although i have lost a little more faith in Microsoft today- to me this is a business practice which does not encourage our trust. these kinds of bugs should be communicated.

     

    Alex

     

TheM365Guy's avatar
TheM365Guy
Brass Contributor
Oct 09, 2020
Hey! I checked this in 2 tenants. I can not reproduce this behavior. Do you using a proxy? Checked with a direct internet connection without any between?
  • alexrademeyer's avatar
    alexrademeyer
    Brass Contributor
    Oct 09, 2020

    TheM365Guy 

     

    hi, thanks for being engaged.

    I just tested again.
    Today the error in the Teams client is gone.

    However, the files that i uploaded are still corrupt (and this is the main issue).

    If you check 1 of the files you uploaded via teams client, can you see the content?

     

    For me, they all look like this:

     

     

    Also, please make sure that the "document library" tab you added is to a sharepoint site (preferrably NOT the same site created by the team automatically.) i will say this: This bug does not exist on some libraries i tested, but for most of them, it does... if you could, can you please try libraries from a few different site collections? Honestly i can't identify which libraries are/are not affected but from what i have seen, most libraries are affected.

     

    Oh! and to answer your question:
    no, i am not using a proxy.
    2 colleagues (both working from home) reproduced this yesterday, and so did a microsoft support agent, so i really dont think it is related to tenant, user, computer, network.

     

    • TheM365Guy's avatar
      TheM365Guy
      Brass Contributor
      Oct 09, 2020

      alexrademeyer I did it like described. No issues, I can upload the files. I can access the files. Also I checked this now with 3 different document libraries. One with a team created library, two with some complete different SharePoint libraries, I can not reproduce this issue. 

      Our tenant is based in EMEA, just as information. 

       

      • alexrademeyer's avatar
        alexrademeyer
        Brass Contributor
        Oct 09, 2020

        TheM365Guy 

        ok, thank you for taking the time to troubleshoot 🙂

        I have tested in our Live tenant, my dev tenant, and also a microsoft support agent (in Asia somewhere) tested in his tenant- all 3 were affected.

        Interesting to hear that yours are not.... this might help us get closer to an answer.

        Thanks again.

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