unable to render sequence using partial frame range as input

Gang,

I have a long sequence I am rendering from a 3D package on 10s -- frame 1, 11, 21, etc...  When I import it into AE (v12.2.1.5) everything seems to preview fine -- AE properly holds existing frames in place of the missing ones.  However, when I try to render out the sequence through either Render Queue or Media Encoder it fails to create a movie -- unknown error.

Any pointers for dealing with this, or am I asking for trouble with this type of workflow in AE?

thanks all!

--Gregory