How can I create a level selection without losing my mind?

Hello everyone! I was trying to learn how to create a level selection with star ratings and watched a video on YouTube. It wasn't working, and I blamed myself because I couldn't follow it correctly and made a mistake that I can't find, even after checking everything multiple times, but... C3P https://www.dropbox.com/scl/fi/obonduaetn6i4oyauvieo/level_select_local_storage_with_stars_BASE.c3p?rlkey=rlj7by8m931gdy9gdn9u5ojtr&st=e90sc8om&dl=0

Strange thing number 1: after that, I searched the forum to solve the problem without opening a new question https://www.construct.net/en/forum/construct-3/how-do-i-8/help-save-stars-project-184823?kws=level%2bselect and found this example by dop2000 here is the C3P file dropbox.com/scl/fi/6d6cyxq6ib64r8jcspxe1/arraystars-fixed.c3p, it's not working like it should until you press Reset. You need to Reset the game result before start to play the new game...

Strange thing number 2 is that even the example from Construct https://editor.construct.net/#open=level-selection is not working. It can unlock levels, but the clear button does not work until the project is reopened. I even tried to force restart the layout by pressing the button after clearing, but nothing changed. (R -> Restart layout)

Construct 3 version: latests stable

The question is that something wrong with me, examples or construct? How to deal with it?

Strange thing number 2 is that even the example from Construct editor.construct.net is not working. It can unlock levels, but the clear button does not work until the project is reopened. I even tried to force restart the layout by pressing the button after clearing, but nothing changed.

The layout is restarted already, but the array is not cleared. Simply add this action to the last event:

-> System: Set gameFirstExec to True

This will force reading the array from LocalStorage, and because the key is removed from LocalStorage, the array will be filled with default values.