Thank you for all your replies. Actually, I got rejected for obtaining BOWP once due no AOR letter was given in the application. On the other hand, when I filled in the IMM forms again as requested I mentioned that in the forms and sent back to IRCC as well. When I was at the border the officer asked me if I denied for obtaining a study(or work I can't remember exactly) permit and I answered no. At the end, he approved on my COPR and I turned PR since then. This is the whole story. Can you guys please see if this is likely a problem coming up?