I've experienced this a handful of times in the default CJ4 where the PFD/MFD are not in sync with the FMS.  Doesn't always happen, however.  Anyone else see this?  Any ideas why it might be happening?  I didn't make any modifications to my flight plan after initially loading it.  I use sim-brief and load the plan into the EFB via the "load fp from PC" function.

 

 

 

 

 

 

Edited December 14, 20241 yr by billkirk8888

it's only a guess on my part, but do you send the flight plan to avionics through the efb?

Yes, I select the option on the EFB to send to the aircraft avionics.