When using my ROKU 4 as my PLEX player, every song loses the first beat (about a quarter to half sec) of play regardless of file format. I use mainly mp3 or AAC in 320. Gaps between songs are also about that length. The ROKU 4 is connected to my Marantz preamp via HDMI (Monster Black Platinum).
This is not the case when I use my Marantz AV7702mkii to play the files, although this is not a PLEX app. It is just able to see the PLEX media server and access its content - and it is pretty much gapless and without any content getting cut off.
I do run into an issue with the Marantz preamp when trying to play WAV or FLAC files. I get a file format error, even though the preamp is able to play these file formats. I have not tried using Windows DLNA instead, but will try that.
I like the interface of PLEX on the ROKU better than the Marantz media player, but the fact that it seems to handle song transitions better makes me use it instead.
Has anyone else experienced this and found a solution (apart from abandoning ROKU as the player device)?