Movieland App on 2 Roku box's. same film but no sound on one.

pfpf

hi.
any ideas?
2 roku boxes with movieland app installed. 
most stuff works a dream but i've picked out 2 films with the same issue.

Deleted_User
Westworld

on one box all is fine, on the other the picture is fine but there's no sound, or so little that i have to have the TV on full to hear a squeak.

neilmcl

Check the audio output stream, if you can on the Roku, and see if it's outputting something one of the TV's inputs can't handle, such as DTS for example. Disconnect/reconnect the HDMI cables for the Rokus and make sure they're fully seated, do this with the TV fully powered off.

pfpf

i will check that thanks but i'm sure i checked audio outputs before.
to make it clear, everything else i have watched has been fine including another bond movie, its just those two that are problematic.
but you've given me the idea to swap boxes and see where the issue lies, TV or Box.
thanks.