Are you sure the audio file itself actually loops seamlessly?
Completely, at least regarding the versions of the files that I myself have exported.
I actually went and checked all versions of the files that I have, including the ones that C2 saves in the exported folders. I have the original files in mp3, wav, and ogg in a separate folder from where I import them to C2.
The way I check if the files loop properly is I put them in Foobar and queue them up then listen for gaps when the file switches.
I first checked the files that C2 produces from importing the wav version.
When the player switches files the gap is there too. So I checked the original wav, the gap is there too.
So I went on to check the ogg versions. They loop perfectly. No gap, no nothing. So I tried importing them directly into C2, skipping importing the wav version (losing the m4a's is not a big deal for me anyway). I tested it again in both preview and exported versions, the gap is there still. Lastly I just copied the files that I know loop perfecly directly into the media folder of the exported project. Still a gap. I also tested the exported project on my laptop, same thing there
At first I thought it was due to how C2 re-encodes the files when you import them. But I checked the exported files from when I just imported the ogg's into C2, and they looped as intended. That the files C2 made from the imported wav didn't loop properly was half-expected, because wav has never been good with looping. I avoid using wav anywhere I can, if I can.
Am I guessing right that when you checked my link you didn't notice any gaps?