Here's a sample config with a delay profile. If the "delay" profile is the active profile, all entries are delayed. If "All" or "Unfiled" is active, no entries are delayed. Yahoo.com should be delayed, the others should not.
I couldn't reproduce the single rule delay issue with the test config, so I'll need to give it more thought with my full config.
Running v10.2.0 on Windows 11/Chrome.
### AUTOFILL PROFILES ###,,,,,,
Profile ID,Name,Site,Hotkey,,,
c1,delay,,,,,
### AUTOFILL RULES ###,,,,,,
Rule ID,Type,Name,Value,Site,Mode,Profile
r2,0,"^keyword$","tracking number here","
usps.com/",1,
r3,0,"^trackingnumber$","trackingID","
fedex.com/en-us/home.html",1,
r4,0,"^trackNums$","trackingnumber","
ups.com/us/en/Home.page",1,
r1,0,"^p$","search bar text","
yahoo.com/",1,c1
### AUTOFILL OPTIONS ###,,,,,,
advanced,"[""c1: delay=3.0""]",,,,,
exceptions,"[]",,,,,
textclips,"[]",,,,,
variables,"[]",,,,,
activecat,0,,,,,
autoimport,0,,,,,
backup,0,30,,,,
badge,1,,,,,
closeinfobar,1,1,,,,
debug,0,,,,,
delay,0,0.5,,,,
fluid,1,,,,,
hidebackup,0,,,,,
manual,0,,,,,
mask,1,,,,,
menu,1,,,,,
overwrite,1,,,,,
sitefilters,1,,,,,
skiphidden,0,,,,,
sound,1,,,,,
vars,1,,,,,
voice,0,1,,,,