FTB/Java Problems

[Woace]

hello, i started to have this problem that just started recently and i don't know what is causing it, when ever i start up minecraft and i get to the menu i try to play my single-player world when (sometimes) it goes back to the menu like nothing was ever clicked but other times it goes through but with only a little square on the minimap as the only areas i can go without falling off and when it does this i cannot do anything with my stuff.

now i kind of figure it has something to do with java or ftb. I have tried to reinstall java, checked the current version, re downloaded ftb and files. i dont think its corrupt either because sometimes it loads and i can play but rarely

so if you can help out i would appreciate it. :'/

 

[TheguycalledDan]

I have been having the same problem, using Java 1.6 on a multiplayers server. I have the very same temperamental behaviour with mine also. I have tried installing the newest version of Java but this leads to my game not working AT ALL and not being able to login in to any FTB modpack.

 

[Ashzification]

Many problems are solved by the trouble-shooting guide, and those that aren't, we can work on from here.

Please read below. Please be sure to read all of the info available in the 2 articles.

Spoiler

Please follow these steps exactly: http://desk.feed-the-beast.com/index.php?/Knowledgebase/Article/View/9/0/basic-troubleshooting
This is to rule out any issues with your setup. Please also read the extra info at the bottom of the guide, and apply all applicable suggestions.

Please post your complete client-side (launcher) console log in debug-mode to pastebin.com and link your paste URL here.
To find your logs and prevent them from expiring: http://desk.feed-the-beast.com/inde...29/1/what-log-do-you-need-where-can-i-find-it