I duplicated a circuit for someone because they got a bad
output waveform.
As I shift up in freq at about 2.7Mhz the voltages jump.

If the voltages suddenly jump with frequency change then this is a sign of
instability. Not seen the circus digramus confusicus, but if it is a colpits
then reduce the gain by adjusting the ratio of the two divider capacitors. I
assume, of course, that you have adequately decoupled the supply line, and
that there is no inductive coupling/feedback.

Instability causes eratic frequency and/or severe distortion. In
particularly bad conditions it can cause unwanted visitors (CBers,
neighbours, DTI, etc.).