Changes to WAV transcoding in MinimStreamer 2.1

[lostinsound]

I have my server on a Synology DS218+ and I'm finding that I'm required to specify wavLimit for it to work, otherwise nothing plays and I get exceptions in the Log. Is that supposed to be the case? The webpage says 4GB is the default, which I thought would mean you don't need to specify it.

My settings:
stream.options: convOut=-af volume=replaygain=album
stream.transcode: mp3:wav, flac:wav;

If I add wavLimit=4GB to stream.options it all works fine.