For barracks (3960FE96) in particular:
Length and Loopend is the same
I changed in HIRC.json:
{
"ID": 43573010,
"Position": 1244.416666667, (originally 0.0)
"Name": ""
},
I replaced it in both "c0d5932300" and "6c905e0f00" Data1
Converted and packaged with your tools (most up to date...