The issue is due to the Kerning being set as None, if one sets it as Optical or Metrics, it solves the issue. The issue is currently under review.
InDesign 2020 includes a new text engine to support five new South East Asian languages: Thai, Burmese, Lao, Khmer, and Sinhala.
Your documents can now include text composed in these languages.
Hope you find this new feature useful in your work.
We’re marking this “Feature Request” as Completed.
Adobe InDesign team
Now you can set fonts/typeface directly in InDesign while creating PDF forms. This feature is now available in latest InDesign CC version. Please upgrade to the latest release.
An error occurred while saving the commenttugce commented
Agree with all these comments here. I have not been able to create drop-down menus in Indesign CC 2019 and having to work with Acrobat is frustrating for all the said reasons.