Long-time bug (or a "feature") I've just ignored and never took the time to report until now.
Steps to recreate:
reports
spending
spending by category
last 12 months
show report
report settings
categories
clear all
I select only my Household category (select whatever you desire)
looks good
rename report
click to close report
yes to save
report closes
reopen report
report settings
categories
Numerous other categories are selected including some built-in categories and also randomly some that've I've created over the years.
Multiple super-validation runs indicate no errors in the data file.
Windows 11 v 25H2 fully updated with Bitlocker encryption enabled.
Quicken v R66.23 Build 27.1.66.23
See images below.