Hey guys. Veeeeeery new to iClone 8 here. I've been coming across this issue lately but never had it up until a week or so ago.

I've always used the face key tool to modify my characters expressions. Recently, when I do this, instead of smoothly and organically changing the expression, the character just abruptly changes to that expression when we hit that keyframe. 
Am I missing something here? Is there a box to check or something? Any help would be appreciated.

Thanks in advance!

Make sure to have Auto Extend enabled in the timeline:
83% of original size (was 606x402) - Click to enlarge

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83% of original size (was 606x402) - Click to enlarge