Joystick button and direction mutually exclusive?

[tkw]

Trying to play Snokie with a joystick. Got joystick calibrated
properly and I can move left and right and jump (button).
However, to play the game I need to jump and go right at
the same time, and when I try that one or the other is ignored.

For example, if I hold right any button press is ignored
until the stick is centered. The button is received, however,
if the stick is centered.

In the calibration screen (CCS64) I *can* do both at the same time.
Only in the game (Snokie) do they seem to be mutually exclusive.

Snokie is not really an exotic app, so anyone know what's up?

What is the calibration screen doing that Snokie is not?

P.S. From the keyboard, Snokie works fine, and I remember it
worked with the joystick on an original C64.