Hello. In piano roll view in my CC64 Pedal controller lane I can see recorded pedal downs but no pedal ups! They show up in the event list view, but not in piano roll view. Can't seem to figure this one out. I am running X2a 64Bit on Windows 7 Pro 64 bit. I am using a standard Roland pedal. All help appreciated!

Do the up and down events both have the same MIDI channel?

Pedal up events display as tiny triangles with no "tail" at the bottom of the controller lane lane (CC64=0) so they can be difficult to see, depending on monitor size and resolution. Also, at the very end of a clip they tend not to be displayed until zoomed in significantly, and copy operations can cause the final up to get slip-edited away when you have Non-destructive MIDI Editing disabled (a long-time bug).
 
Other than that, I don't really know of a condition that will cause none of them to be visible when pedal downs are.