InDesign cc2020 ,I cannot write (ရွှေ၊ငွေ) pyidaungsu book fount in table.When writing this words ,t

Can you show us a screen shot of the table, please

Likely an issue with the font and how the unicode is interacting with InDesign - possibly a bug

Try downloading the latest font version

https://mcf.org.mm/pyidaungsu-font