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Oli_Analyst's avatar
Oli_Analyst
Frequent Visitor
9 months ago
Solved

Internal error: looking up invalid data on a dense spool.

Hi, we have been experiencing this error (Internal error: looking up invalid data on a dense spool.) since this morning, and it has affected all Power BI reports. A similar issue occurred on 6th October and was resolved three days later.

Based on the following post (Solved: Looking up invalid data on a dense spool - Microsoft Fabric Community), this appears to be an internal issue. Could you confirm if this is the same bug as before and provide an estimated timeline for resolution?

 

Regards,

Oli

 

 

 

 

 

 

  • Hi Oli_Analyst 

    The error “Internal error: looking up invalid data on a dense spool” is a known Power BI Service issue.

     

    It has re‑appeared recently and is being tracked by Microsoft as an internal bug, unfortunately, there is no official public timeline for resolution, but past incidents (like the one in October) were fixed within a few days.

     

    Did it work? 👍 A kudos would be appreciated
    🟨 Mark it as a solution to help spread knowledge 💡

     

    🟩 Follow me on LinkedIn

3 Replies

  • Hi Oli_Analyst 

    The error “Internal error: looking up invalid data on a dense spool” is a known Power BI Service issue.

     

    It has re‑appeared recently and is being tracked by Microsoft as an internal bug, unfortunately, there is no official public timeline for resolution, but past incidents (like the one in October) were fixed within a few days.

     

    Did it work? 👍 A kudos would be appreciated
    🟨 Mark it as a solution to help spread knowledge 💡

     

    🟩 Follow me on LinkedIn

    • Oli_Analyst's avatar
      Oli_Analyst
      Frequent Visitor

      Hi, yes it appears the bug has been fixed and our reports are refreshing fine. Thank you.