The jar asset you added to the 1.2.1 release doesn't seem to be up to date (or something went wrong when you built it). It doesn't show me the "Choose local modpack" function when I execute it.
To verify that this behavior is not intended I did the following:
I built cmpdl with the files from the source code zip asset you provided with the 1.2.1 release and there the "Choose local modpack" option shows up.
I pulled files from the master branch of the CMPDL Github project and used those to build cpmdl and there the "Choose local modpack" function shows up.
For all my building and testing I used openjdk version 1.8.0_222
The jar asset you added to the 1.2.1 release doesn't seem to be up to date (or something went wrong when you built it). It doesn't show me the "Choose local modpack" function when I execute it.
To verify that this behavior is not intended I did the following:
I built cmpdl with the files from the source code zip asset you provided with the 1.2.1 release and there the "Choose local modpack" option shows up.
I pulled files from the master branch of the CMPDL Github project and used those to build cpmdl and there the "Choose local modpack" function shows up.
For all my building and testing I used openjdk version 1.8.0_222