Yep, I’m having the same issue with HTML code showing up after hitting “SUBMIT.” I rolled back to 3.0.8. I won’t be moving forward until this is fixed.
I confirm that rolling back to 3.0.8 is a functional workaround.
I used WP Rollback plugin for that.
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This reply was modified 10 months ago by
progonkpa.
I have the same problem. After update of wordpress and php a lot of problems, but no update as so far.