I tried Auto-fill My Return (AFR) on 3 returns (including my own) today. I was getting the following message:

"CRA Data Import.

Hang tight while we import your date into Profile.

Your session with the CRA's online services did not initiate or timed out. Please close this window or try again."

Just in case, I deleted all the cookies, but it was still impossible to use the AFR feature. However, I was able to access clients' T4 and other slips using "Represent the Client".

I wonder, is this Profile's or CRA's issue? I'd appreciate any input.