Problem Saving Textarea Into Database

I have used the CRUD generator to make some forms to edit database tables. For some reasons on all my existing tables the TextArea fields, saving to TEXT fields in the MySqul database, do not update anymore. You enter any value, and it does not get saved. Existing values are though displayed correctly. I tried to create a new table and it works correctly. I thought that problem could be introduced by the relationships and dropped them all, but still no success. Any hint what could be happening here, please advice.

i think you can find your answer here.

Yes, I got it. I removed the required condition of the commment fields, after that they did not save anymore. Just putting them as safe did resolve it. Many thanks for the tip.