We'll have to take a closer look. If you can first re-start Wowza and test just one problem stream, try to play it back in Wowza test RTMP player. Then zip up /conf and the access log showing Wowza re-starting, streams starting and your playback test to
firstname.lastname@example.org. Include the .stream file. Is the source on a public IP that we can test? Also include a link to this post for reference.