Red flags in PR application may very well be reasons of trv refusals.
@Sir123 , what is your PR timeline? Any weak points like second and/or recent marriage? Any concerns for your SA?
@HARPREETK16 , same for you. I see you applied right after AOR before getting SA or waiting for other steps. I believe that in one of your posts you said that you have already sponsored someone but divorced. This might be a concern for IRCC that will trigger more scrutiny. So applying right after AOR might have contributed for your refusals. This is just my opinion.
I would not recommend to apply right after AOR especially if you have anything that might potentially require more analysis on the part of IRCC. If you have a strong PR case like 10 years of marriage, super strong ties to home country, 3 kids etc... then probably it`s not a problem. Again, this is just IMO.