X-plex-container-size header exceeds limit 1000?

I recently started having issues trying to playback certain video files in Infuse from my Plex library (on my Apple TV). They will often require me to attempt to start playback numerous times before it actually starts playing. This morning, I decided to check out the server logs while it was happening to see if I could figure out that was going on. The only thing in the logs were the error messages below.

11:26:55.440 0x7fdc6a421b38 [Req#19769f8b] X-Plex-Container-Size header exceeds limit 1000. This will fail with status code 400 in th... 11:26:55.645 0x7fdc6a421b38 [Rea#19769f8f1 X-Plex-Container-Size header exceeds limit 120. This will fail with status code 400 in the... 11:26:56.028 0x7fdc6bc2db38 [Req#19769f95] X-Plex-Container-Size header exceeds limit 120. This will fail with status code 400 in the... 11:26:56.386 0×7fdc6b3c0b38 [Reg#19769f9b] X-Plex-Container-Size header exceeds limit 120. This will fail with status code 400 in the...

Anyone have any idea what the issue is (and how to fix it)? It seems to only be happening with certain files (though I can’t say that with 100% certainty).

Does the same issue occur with the plex client? If so you might want to move this over to the plex forums as it could be a server issue.