Morph cut - Analyzing in Background never completes

i have simple headshot cutting same head, same few seconds later.

all other transitions work find. try morph cut , see 'analyzing in background.' never see sign of progress - should see chewing through frames somehow?

i have gone project settings. tried both rendering settings. 1 thing - when gpu acceleration still frames garbage - example:

http://www.screencast.com/t/rpiwl6yl

software acceleration looks fine. no idea if these items related.

have run through preferences. don't see might turned off. btw - working mbp 15" late 2013. latest os.

for red stripes: turn off mpe hardware (ist know issue el capitan)

for morph cut might want read this: adobe premiere pro | troubleshooting morph cut transition in premiere pro

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