I have the same problem. The console sits on
[INFO] [STDOUT] ROTARYCRAFT: Adding item.shaftcraft.crafting.ironscrap.name with size 1-8 to VILLAGE
for about 25 seconds and then it continues. But it continues with a bunch of red text starting:
2013-12-27 16:02:50 [INFO] [STDERR] java.net.SocketException: Connection reset
2013-12-27 16:02:50 [INFO] [STDERR] at java.net.SocketInputStream.read(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at java.net.SocketInputStream.read(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at java.io.BufferedInputStream.fill(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at java.io.BufferedInputStream.read1(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at java.io.BufferedInputStream.read(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at sun.net.www.http.HttpClient.parseHTTPHeader(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at sun.net.www.http.HttpClient.parseHTTP(Unknown Source)
2013-12-27 16:02:50 [INFO] [STDERR] at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
The game eventually starts but the log ends with:
2013-12-27 16:17:22 [SEVERE] [Minecraft-Client] Realms: Invalid session id
Not sure it's relevant. I can't pastebin full log. Is too big.
I have tried to disable the Rotarycraft mod but the launcher crashes without it.
There is a mod in the pack that is dependent on Rotary craft, which is Reactor craft. So if you wish to disable Rotary craft, you have to disable both.