Well, a missing number, a comma {,} instead of a semi-colon {;} in the source code, e. g. makes a web page not work and only a blank screen is displayed or as you’ve now realised a simple number ‘2’ in the file name makes a huge difference. All too often it’s the little things that cause problems for us humans.
Heimdall frontend (Odin equivalent) for Linux (or Mac) does exactly the same as Odin v3.14.4
Heimdall Frontend Linux
Odin v3.14.x Frontend Windows