Just scanned through the previous year of Come Follow Me on my app (Android) and can find none if the noted I took in lessons, using the orange tap on button for personal note taking available for each weeks topics. I saved every note when done writing down inspirations. Where'd they go? I am correctly looking in my account, signed in, Gospel Library app.
I still have my annotations in the 2019 New Testament manual. Are you looking in the same manual you used for study? Note that there are three similar 2019 New Testament manuals: for individuals and families, Sunday School, and Primary. Are you on the same device as the one you were on when taking notes?