Refugee with Canadian Passport

[pinkgiraffe]

Hello, sorry if I'm in the wrong sub forum but I have a question for those with similar experience. I gained my permanent stay in Canada as a refugee and just recently obtained my Canadian Passport, after a very long process. I travelled recently to US and when I comeback to Canadian airport, I always pulled aside and must go through a secondary check at CBSA. Other Canadian passport holders can just exit to claim their baggage. I asked the officer what's wrong and they said it's fine, just normal routine and handed me back my passport. Anyone else experience the same situation? I never get into trouble or anything, I went through the same process from refugee to PR to citizenship. I'm so confused because I get pulled over twice at the airport to get interrogated by the CBSA, even for a brief moment.