Knowledge > Create New leads to a blank/empty screen
Incorrect attribute format.
This is seen due to incorrect attribute value added to 'text' field (Article body) on Knowledge table. Please see the 'Attributes' column on the text dictionary entry:
Please note, there is a period character being used to separate 'Translated serializer' and 'HTML sanitizer'. The separator should be a comma (,) character as opposed to a period.
Enable sanitization on individual fields