Could you check/uncheck the option Store Presets with this catalog under Lightroom>>Edit>>Preferences>>Presets
See if your Presets are back.
If not so ,You need to migrate the Presets default location in your older user acoount
Location :-C: \ Users \ [your username] \ AppData \ Roaming \ Adobe \ Lightroom \
Thanks so much for your quick reply, Akash. The first suggestion didn't work. How do you "migrate" a preset. Also all my other presets are missing too, print, Develop and others.
I can see the files, folders in question, under the directory you mentioned, but can't get LR to see them
Ok, user error, I didn't follow your initial instructions, I misread "check/uncheck" as an "or" not a sequence. Once I went back and did that, it worked.
Glad to know it is working again