Product Feature: Interactive Editor (ActiveX)
Issue
Erratic behaviour when using % followed by numerals in an entry field
If an editable paragraph ("free text" field) is edited such that it ends with the '%' symbol followed by numerals (spaces are irrelevant), then the behavior of the cursor over the '%' and the spaces surrounding it, as well as the display of that section, appears to become a "mirror" image of the actual content.

If an editable paragraph ("free text" field) is edited such that it ends with the '%' symbol followed by numerals (spaces are irrelevant), then the behavior of the cursor over the '%' and the spaces surrounding it, as well as the display of that section, appears to become a "mirror" image of the actual content.
Cause
The error was caused by the introduction of Arabic (RightToLeft) support, introduced in 5.6.1901 / 6.0.845.
Cursor movement behaves in Arabic (RightToLeft) fashion when % is followed by number at end of paragraph.
Cursor movement behaves in Arabic (RightToLeft) fashion when % is followed by number at end of paragraph.
Resolution
UPDATED: November 6, 2017Upgrade to 6.0.1732 (M5 releases) or 6.0.1809 (M6 releases) respectively.