adobe connect 9.3 pdf & ppt recording problem

i have adobe connect 9.3 and 9.1.2 on premise
i installed in my own server
my problem is the ppt and pdf in share pod does not show in the recording .
any thing show well in recording but when i share pdf or ppt in the share pod it does not appear in the recording and share pod remain blank in recording

what is the issue ?

thank you