problem 1: clip dropdown of sprite animator shows some clips that have been removed.
problem 2: animation lib may not show in the Anim Lib dropdown list.
problem 3: switch clip may fail with error: IndexOutOfRangeException: Array index is out of range. maybe is also caused be problem 1.
ps: we use about 100 collections and anim Libs
FIX EDIT:
all problems caused by script created Animation with clip frame count is 0.(not show up in AnimationEditor but show in Anim Lib drop down list)