


The problem
Power BI users hit the same confusing issues again and again: totals that look wrong, last year showing blank, slicers full of empty items, "please rebuild this data combination". Most answers skip the why, so the problem comes back.
What I built
A YouTube series with one real problem per episode, reproduced on a real report before any script is written
The fix as numbered steps with every click named, shown on the real screen
A before vs after check, so viewers can prove the fix worked on their own report
A new designed demo report for each episode, with custom charts
Every claim checked against current Microsoft documentation on the day
Episodes so far
Why is my total wrong?
Why does my chart start in April?
Showing (Blank) instead of 0?
Why is my last year blank?
Why is my Power BI refresh so slow? (query folding)
Why does my row-level security not work?
Why does my slicer show items with no data?
Why does last year compare the wrong days?
Please rebuild this data combination
Watch the playlist: youtube.com/playlist?list=PLFNMCVTIzAh8
0 likes · 0 views · Nov 11, 2026
A YouTube series I write, design and present: one real Power BI or Fabric problem per video, the fix as numbered steps, and a before vs after check.