It turned out, that the BreezingForms component stores a reference to the calling component in a hidden form field(what an idea...).
And that reference is false, com_content instead of com_flexicontent.
I can't tell wether that is a matter of FC, JoomFish, or the form component.
Anyway, they stopped to answer about the issue, no more reaction. Some people just can't handle critics.
Its not the first time I have issues with them. I've been using it for almost 10 years now, since it came out as FacileForms. I think I paid like 5 times for it in all those years.
Its an unbelievable pile of spaghetti code in the meantime. Since they started to put jQuery on top of all the crap things got even worse. Forms were not submitted. They came out with a plugin that disables the cache for the form page, avoiding an error, not fixing it. On another bug one of my servers got hacked, and so on. With the latest update the form translation with JF is not accessible anymore, they just dropped support without a note. Asked about the issue- no answer.
If you think its an error in BF, I will ditch it for good. I already wanted to get rid of it with this project, but out of convenience I kept the form I already had.
What other form component would you recommend for multi-lingual frontends?
I wanted to give Proforms a try, anybody checked that out?
www.mooj.org/en/extensions/compo
... forms.html