TMSFNCRichEditor Version 1.8.4.0 BackSpace on Android

FNC TMS FNC UI Pack
1

Deployed on Android 10, whenever I press the Backspace I get a "RANGE CHECK" error

procedure TTMSFNCRichEditorBase.Backspace;
var
el: TREElement;
nel,pel: TREElement;
bul: TBulletElement;
bt: TBulletType;
isinerror: boolean;
Error: boolean;
s: string;
tl: TPoint;
su: integer;
begin
if FDoUndo then
begin
PushContext;
FDoUndo := false;
end;

if HasSelection then
DeleteSelection
else
begin
FDefaultChanged := false;
if (Caret.Element is TTextElement) and (Caret.CharIndex > 0) then
begin
isinerror := (Caret.Element as TTextElement).Error;

  s := (Caret.Element as TTextElement).Text;
  if Caret.CharIndex > 1 then
  begin
    **su := Ord(s[Caret.CharIndex]);**  <<<<<Here
    if su and $D800 = $D800 then
      Caret.CharIndex :=  Caret.CharIndex - 1;
2

The reason this is happening is that I have all the Runtime Errors -> I/O, Overflow and Range Checking options checked in the compiler.

3

We'll look into this as soon as possible

5

We applied an improvement that will be included in the next release.