Incorrect result with opentype.js with Arabic font

Expected Behavior

I have one Arabic font ttf file.
When I used that file in other software like word, and in browser html, I am getting correct result.
Here is text I am using for testing = روميك
Here is preview in word and other software

I want same which is correct result with opentype.js

Current Behavior

As you can see in below image which is taken from https://opentype.js.org/,
We are getting incorrect result with opentype.js
Some character are very close to each other ( Right 1st and 2nd )
Some part is missing(Left first character)

I think this should be same as above screenshot taken from word

Steps to Reproduce (for bugs)

1. Go to https://opentype.js.org/
2. Upload this font
   -https://drive.google.com/file/d/1nAWOMypqvJTa2hufy5pxOfc2PMlKj6sw/view?usp=sharing
3. Paste this Arabic text to input - روميك
4. You will see result with style from that font.

Your Environment

• Version used: 1.3.4
• Font used: https://drive.google.com/file/d/1nAWOMypqvJTa2hufy5pxOfc2PMlKj6sw/view?usp=sharing
• Browser Name and version: Chrome - 122.0.6261.71
• Operating System and version (desktop or mobile): For all operating system