FYI, after I updated the ASUS Launcher to the latest version at the Play Store last night, I noticed the "What's New?" Box in the app page, and it says "added grid size feature", and then I try that feature, from 4x4 to 5x5. The Widget are gone, then I put them back again, plus some new Widget, because that feature makes my Widget space wider. Right after that, when I open one of my folder, it happens. Plus, my 1tapbooster Widget disappeared.
Restarting the phone won't change those 2 problems. Thank you.