Summary columns missing when using custom columents

Hey there! I've noticed a behavior with some questions where I use both summary columns and custom columns (which include those summary fields in its formula).

In summary, after working for some time, the question suddenly throws an error (source sum column does not exist - image 1) and, upon checking the 'notebook editor', the summary columns are actually missing (image 3 vs. image 2).

Any input on how to avoid this would be very helpful! thanks

Hi @ruy
Could it be that "leads_table_view_query" does not have the columns "call_booked" and "project_booked" anymore? That would drop them from the summarize section, but if there's references in the Custom Column, then those are not always correctly cleaned up:
Custom columns not removed when a join is removed · Issue #14775 · metabase/metabase · GitHub - upvote by clicking :+1: on the first post

Hi @flamber , thanks for the reply.

The leads_table_view_query remains unchanged and still includes those columns, but the summary columns sometimes go missing for an unknown reason -- and consequently leads the custom columns to not work and the whole question to break (with similar error messages to the screenshot).

@ruy So this only happens sometimes? That sounds very strange. There's no consistency in when the problem occurs?
Can you include "Diagnostic Info" from Admin > Troubleshooting.