Form gives indication of not being filled out correctly without showing why.

Hi,

When I try to submit one of my forms with conditional logic it says there was a problem with the submission and that the errors have been pointed out below. The errors are not pointed out below however. Maybe it requires a field that is hidden by conditional logic? This is a fairly new problem since I've successfully submitted the same form in the past (haven't changed anything in the form). The last update might have something to do with it?

Thank you for your time.

Sure, http://xn--kontorslokalergteborg-vec.com/miljoutbildning/
It's the one at the bottom called "Förfrågan - Grundläggande miljöutbildning".

There's also another problem. It might be connected with the one I described above:

If you chose "Bokning" and in the next box type in a value between 9 and 12 you will see some red text appearing a bit further down. That red text should only appear if the option "Eget utbildningstillfälle (rekommenderas för er)" is NOT chosen.

I've deactivated all plugins, switched theme to Twenty eleven and done some additional testing, but the problem is still there. It seems that the issue is only with the condition "IS NOT", and the problem is not just the form I linked above. I tried it with another form using only the "is not" condition without any other conditional logic and it doesnt work. Everything else seem to work.

It did work in the past though. I can't be very specific as to when the problem began since I hadn't submitted the form in quite a while, sorry.