Change job after PR before PR card

[shandias]

I recently got my CoPR and sent photos for my 1st PR card. I am still waiting for my PR card. I got my PNP through employer drives stream and had my closed work permit tie to my employer. As far as I know as PR in Canada I can work and study anywhere in the province no restriction but my consultant asked me to not to change my job until I receive my PR card as my PR card might get reject. I think its a faults statement just want you guys opinion.