Thank you for this amazing tool!
I tried it but encountered an error, so I'm commenting to report it and ask for help if possible.

Environment
Win10
I haven't made any changes to KPBetaDownloader after downloading it.

Steps taken
・Entered x-kh-session
・Set target to “memorial” or ‘burst’ without checking “Modify JSON”.
・1. Ran DownloadScenario ⇒ Completed
・Ran 2.DownloadAssets ⇒ The following error appeared and it wouldn't proceed

Error message:
“Illegal trailing comma before end of object: line 11 column 64 (char 158)”