My preview cache keeps having an issue and making lightroom crash. I had done everything I see in the forums here. Cleared my cache lord knows how many times now. I finally contacted chat on adobe and she had me RENAME my preview folder. It worked well for the past few days no crashes. Until today of course when I am editing for a purpose. I cannot remember what she asked me to name my folder it was a _old I know that. Anyone have a clue?