Okay. I found it.
Code:
{
"items": [
{
"name": "Testy",
"priority": 1,
"items": [
{"name": "FOO RUNNER", "priority": 1, "action": "bin/foo.sh"},
{"name": "BAH RUNNER", "priority": 2, "action": "bin/bah.sh"},
{"name": "FUBARRED", "priority": 3, "action": "bin/fubar.sh"}
]
}
]
}
WILL Work.
Code:
{
"items": [
{"name": "FOO RUNNER", "priority": 1, "action": "bin/foo.sh"},
{"name": "BAH RUNNER", "priority": 2, "action": "bin/bah.sh"},
{"name": "FUBARRED", "priority": 3, "action": "bin/fubar.sh"}
]
}
Won't work.
It's related to the formatting of the menu.json...
Reproducible in all instances.