Hello,
We have investigates this issue and found that there are different versions of the Noto Sans font available. The included glyphs depend on the particular version. It seems that you are using a version without Devanagari glyphs. In case of other programs able to display the glyphs, the programs will probably select the Devanagari glyphs from other fonts supporting them.
Try to download the following version Noto Sans - Google Fonts. This version worked for me:
Ensure that you deinstall the old version before you install the new one. Also restart Embedded Wizard after changing the fonts to purge internal font caches.
I hope it helps you further. Please note the limitations of Embedded Wizard concerning complex text layout. Using Embedded Wizard you can display individual Devanagari glyphs, as long as there is an associated Unicode code point. The complex text processing, necessary to display normal Devangari text, is however not supported.
Best regards
Paul Banach