I mainly use this app for the drawing tool, but recently there's a bug with the color picker/eye dropper tool. Every time I use it, it somehow disable all the other features, and I can't click or use any of them. This has been happening for a while. The drawing tool is the only reason I am using this app for so long with all the annoying ads, so if the issue isn't fixed, I guess it's better to just find another app replacement.