arabic texts issue - mixing English and Arabic words and deleting characters

I'm starting to understand parts of this. Thank you @Ali Jaber for your continuing correction on the nature of this bug. And I believe you are correct: "If you choose RTL direction, you will have no problem typing Arabic without that error."

And thank you @Zaid Al Hilali; I found one of your old posts when the earlier mogrts were not behaving with Arabic typing.

I see no bug report in UserVoice (soon to be migrated) nor in the new "Bugs" subforum here. I have tested in 23.1.0 and Beta 23.2.0.44, and am convinced there is a bug.

After further testing, I now believe that a version of this problem can occur with all English text. Mixing English and Arabic is where the problem is discovered, because the user is more likely to change LTR/RTL and get the problem.

My current theory:
For LTR text, if it is changed to RTL, the Backspace key deletes all letters on a line.
For RTL text, if it is changed to LTR, the Backspace key deletes all letters on a line.
The LTR/RTL setting applies to an entire EGP layer.
So mixing LTR/RTL text in one layer will be more likely to show the problem.
Keeping LTR/RTL text on separate layers will reduce the risk of problems.

Demonstrating the problem using all English typing:
Use the Text tool, and click in the Program Monitor.
The default for me is LTR.
Type any random keys.
Click the RTL icon.
Hit the Backspace key.
All letters typed are deleted.
A multiline entry shows that the Backspace deletes all letters on a line.

I considered whether "LTR text" and "RTL text" is determined by what is selected when it is entered. But it appears to be a characteristic of the language. So whether English is entered with LTR or RTL selected, selecting RTL before hitting backspace deletes all letters.

Stan