After the implementation the webpart is not showing the icons.
We are using ,
'sp-client-custom-fields-fix/lib/PropertyFieldCustomList' WITH
(1) SPFX 1.14 and
(2) node 14.18.1
the output is same (Pls. refer the below screenshot) for 'during debug mode (Gulp-serve)' and 'post deployment (Gulp-bundle) also
Screenshot as follows (it shows, icons are missing):

Expected:

Help!!!
Can someone pls. help towards resolution...?
@Meghaa25