I am working on getting my taxes up to date and when I looked at my CRA account, 2018 is listed as not received, but 2019 is, even though I submitted BOTH in the same month/year.
I submitted on the 1st of November, 2021 for 2018, order number TTWND182340862 -- not received
I submitted on the 15th of November, 2021 for 2019, order number TTWND183985927 -- received by CRA
I never thought to look in to this because I frankly never thought that the taxes wouldn't be filed.