I saw several videos where the know procedure sp_blitzfirst shows the memory grant columns, I even saw it working like that, but on the latest version of the first responder kit, it doesn't show those columns, were those removed?
When I execute it with @expertmode=1 it just show on the messages tab:
Setting up configuration variables
Now starting diagnostic analysis
Capturing first pass of wait stats, perfmon counters, file stats
Beginning investigatory queries
Finished running investigatory queries
Waiting to match @Seconds parameter
Capturing second pass of wait stats, perfmon counters, file stats
Analyzing changes between first and second passes of DMVs
Analysis finished, outputting results