Problem recording & replaying video via FSX record & play video option.

Try using the free program FS Recorder. The default FSX recording system is unable to record most of the animations of complex add-on products, including those of PMDG products. FS Recorder is more flexible and widely used by video makers for playback and recording.

 

The current Alpha version has a nice feature that lets you render videos directly from FSX. While the results have very high frame rates, good camera shake from EZCA is lost.