Recorded Programs Won't Launch on Fire TV

Server Version#: 4.61.2
Player Version#:
Tuner Make/Model: HD Homerun
Guide/Lineup name:
Using XMLTV?:
Channel number/Name:

I am running Plex on Windows and am using HD Homerun for Live TV Streaming. The server is properly configured and I and browse and stream recorded TV to PC and Ipads, however if I try to view a Recorded TV program it won’t launch from a Firestick or Fire TV. How can I diagnose / fix this issue?

Plex Media Server version? (4.61.2 is the web viewer version)
Plex Media Server platform? Win/Mac/Linux/etc
FireStick/FireTV client version?
Version information available via Authorized Devices: https://app.plex.tv/desktop/#!/settings/devices/all

What happens when you try to play a recorded program? Error message (what does it say), App crashes, etc?

Can you play other content using the Plex app on the FireStick/FireTV?

It clicks/flashes like it is about to launch, however it does not launch. All other content works properly. Streaming recorded TV to Fire TVs is the only issue.