I've never had this before but my graph editor and keys now have lost their targets and smoothness and have these weird spikes between them meaning the animation is ruined. Anyone know a solution??

See image...
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Name:	Screenshot 2016-06-13 17.03.00.png 
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Click image for larger version. 

Name:	Screenshot 2016-06-13 17.03.00.png 
Views:	52 
Size:	385.6 KB 
ID:	74626


Thank you in advance!