Text Replacement Capitalizing Automatically

Hi All,

I am attempting to set up a text replacement for Arabic transliteration using the option key. In the replace column, I have 'option+d' and in the right column I am entering the unicode hex for the letter - in this case 'option+1E0D' - after switching keyboard input. It seems to be all set as shown in the picture below:

However, when I go to use it, it automatically replaces with a capital letter - see picture below:

I've tried adjusting the setting for automatically capitalizing, but otherwise not sure how to troubleshoot. As it is pretty specific, I also haven't been able to find any posts related. Thanks for any help!