Cannot adjust speed keyframe types

[Tim15C2]

Trying to edit the speed with keyframes in the effects control panel. 

Photo A When I right click on the keyframe in the 'Effects Controls' panel, the options to change the keyframe type, I want to select "Continuous Bezier", the options are greyed out. How do I reactivate them? 

Photo B When I click the little stopwatch icon to the left of 'Speed', it says it will delete all of the keyframes in warning message, but if I accept, it actually deletes the clip off of the timeline which is super annoying. What is going on here? 

Thanks for the help. 

[RobShultz]

1st question you might want to switch it to linear and then change it to continuous before.

2nd question is weird. You may want to reset preferences. 
To do this:

Close Premiere

On Mac hold down command/option/shift and then let your system make changes.

Same procedure on Windows except hold down shift/control/alt.