I discovered that my newly created study was not appearing in my own study list.

My new study:
playstrategy.org/study/kfLbZuYU

Study list:
playstrategy.org/study/by/Xzon77

Hello @Xzon77
I can see kfLbZuYU in playstrategy.org/study/by/Xzon77
Can you confirm you currently see it ?

Thank you

No, I can't see my latest game study. (playstrategy.org/study/kfLbZuYU)

Now I'm trying to do yesterday's game study as many times as possible.

I know what can I do

I replaced one of my old study with a game study

1

Great you found a workaround.
Your studies are ordered by popularity (descending) by default, which may explain why kfLbZuYU is ranked lower down.
If you update the select to "Date added (newest)" (or go to this URL playstrategy.org/study/by/Xzon77/newest ), kfLbZuYU should appear for you in first position (top left) currently as it is the most recent one your created.
Hopefully this was the reason.

1