Hi i use WOWZA about 1 years. All was works fine. But now i see that often any one of my channels has a strob motions and triple sound… in log i see error like this :
INFO server comment - LiveStreamPacketizerCupertino.endChunkTS[liveedge/definst/ZDOROVOE_TV_360p.stream]: Add chunk: id:8 mode:TS[H264,AAC] a/v/k:4/6/1 duration:0
ERROR server comment - LiveStreamPacketizerCupertino.updatePlaylistStr: java.lang.NullPointerException
java.lang.NullPointerException
at com.wowza.wms.httpstreamer.cupertinostreaming.livestreampacketizer.LiveStreamPacketizerCupertino.e(LiveStreamPacketizerCupertino.java:2080)
at com.wowza.wms.httpstreamer.cupertinostreaming.livestreampacketizer.LiveStreamPacketizerCupertino.endChunkTS(LiveStreamPacketizerCupertino.java:1496)
at com.wowza.wms.httpstreamer.cupertinostreaming.liverepeater.CupertinoStreamerLiveRepeaterReceiver.addVideoData(CupertinoStreamerLiveRepeaterReceiver.java:202)
at com.wowza.wms.stream.live.MediaStreamLiveAbstract.addVideoData(MediaStreamLiveAbstract.java:74)
at com.wowza.wms.netconnection.NetConnectionProcessData.processNextRequest(NetConnectionProcessData.java:493)
at com.wowza.wms.netconnection.NetConnectionAdapter.service(NetConnectionAdapter.java:127)
at com.wowza.wms.netconnection.NetConnectionSessionHandler.a(NetConnectionSessionHandler.java:202)
at com.wowza.wms.netconnection.NetConnectionSessionHandler.a(NetConnectionSessionHandler.java:78)
at com.wowza.wms.netconnection.NetConnectionSessionHandler.messageReceived(NetConnectionSessionHandler.java:165)
at org.apache.mina.common.support.AbstractIoFilterChain$2.messageReceived(AbstractIoFilterChain.java:181)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:511)
at org.apache.mina.common.support.AbstractIoFilterChain.access$900(AbstractIoFilterChain.java:42)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:786)
at org.apache.mina.filter.codec.support.SimpleProtocolDecoderOutput.flush(SimpleProtocolDecoderOutput.java:60)
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecFilter.java:177)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(AbstractIoFilterChain.java:511)
at org.apache.mina.common.support.AbstractIoFilterChain.access$900(AbstractIoFilterChain.java:42)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceived(AbstractIoFilterChain.java:786)
at org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java:247)
at org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(ExecutorFilter.java:323)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
After that the channel not work correctly 
But RTMP work fine…
The channel in which have a problem not constant. It may be any…
I Use WOWZA 3.6.3 with origin-edge configuration
at first i think that may be Network error but by RTMP channel work fine… and if a reset the channel the problem is stay and clear only if i rename the stream, or restart the edge WOWZA…
Thank for any helps!