Affiliate Marketing Secrets

When i was 17 i got a misdeamor and i did my 1 year probation and was told that my case would be “sealed” .. i have worked at big retail places that do conduct strict background checks and never had a problem at all!! passed my background check, but recently 2 jobs has seen my case. my question is how can some jobs see since its ” sealed ” and some jobs see my record clear. i have a back ground check for SUITMART this coming monday, do you think i will have a problem,
Jobs i have passed my background
Walmart, Target, Reliant Energy, Freebirds, Speedy Stop ,Affiliated Computer Services.
Jobs that seen my case
Staffing agency, and HEB