This forum has had multiple queries in regards to the 'received line' and what its disappearance means. It has so many meanings as to almost have no meaning because there is no reliable statistics that detail its relevance so relying on it to decipher if you will for example get an RQ, are invited to test, background checks are commenced, finger print request made etc is a meaningless and pointless exercise (in my humble opinion). However I have been on these forums long enough to know that human nature is such that we can think and read into anything what we want and as CIC's ecas has become more and more vague including the elimination of the transfer to the Local Office date there are many that will seek comfort in reading into the disappearance of a line as a sign of some distinct progress.
All it really means is that the time flag for 'received' as set up on the ecas database has passed by - whatever activities Sidney has/should/did not do are irrelevant really because until your file is at the Local Office you are not getting a test and that transfer date really is the important "there is progress" trigger point.
Just my 2 cents!