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Loading between channels on AD8672?

Im using the AD8672 on the dual op amp evaluation board to provide 2 output channels.

Both amplifier A and B are given the same 30us input signal. Amplifier A is behaves normally as long as Amplifier B is not connected to a scope (50ohm termination). Can anyone explain to me why this happening?

Ive attached the schematic as well as 2 scope captures.

Ch1 is the input signal.

Ch2 is the output of Amplifier A.

Ch3 is the output of Amplifier B.