With multiple lines of text in the same paragraph, clicking on the last possible position on any line (except the last one), the caret moves to the first position on the next line.
Reverse selection using the mouse starting from the last position in a paragraph before a table will select the first row. This is reproducible in both selection modes (general and advanced selection mode). Note that this is valid only for the mouse selection. When using the keyboard, the selection is correct.
Unsupported merge fields (NotSupportedField) are automatically updated when hosted in a header or footer. In MS Word, the fields are not updated/evaluated until you manually call their Update Field action (in the right click menu shown over the field).
RichTextBox: Sometimes Double mouse clicks will not execute when clicking into the middle of a letter (triple can become double). This is due to the mouse drag threshold, we should also expose the setting for this.