I have the same problem here, the message also is conflicting with javascript functions in the admin preventing from changing publish date, swtiching between text and visual, and many other… had to disable the SEO plugin to get everything working in the admin.
Thread Starter
adras
(@adras)
I just updated to Types 1.6.4 and the problem is now resolved.
Thread Starter
adras
(@adras)
I will try to switch to default theme, will report here if there was capability issue. Thanks.