[eluser]easymind[/eluser]
Ok, so, there can be a limit to the amount of variables one can post in one run in some php configs. If suhosin is enbaled it is set by default to:
[suhosin]
suhosin.post.max_vars = 200
suhosin.request.max_vars = 200
This was the case on my host. So I have rewritten the code to use ajax to only save 1 question at a time instead of the whole list in one go.
Looking into session posting and into uri protocol took me all day, and now it seems it was just the tight ass hosting comp. Who has ever heard of suhosin anyways? Sounds like something you eat with sticks...