Cannot type some thai word and copy paste bug.

https://www.youtube.com/watch?v=utCWwJbKga0

  • Cannot type some thai word like 8(ค).
  • Copy paste has double paste bug.

The double pasting bug is a known issue.
https://discussions.unity.com/t/715246

Could you please submit a bug report with a minimal repro for the other one?