I have the same issue (since the new update).
Streamingserver: VDR (mp4 streams)

But streams from VLC are working but Audio is not syncron

I used this transcode options.
:sout=#transcode{venc=x264{bframes=0,nocabac,level =30},vcodec=h264,vb=512,width=512,height=288,acode c=mp3,ab=64}:std{access=http,mux=asf,dst=192.168.1 78.29:8080/test.mp4}