just build-iso issues?

[Sir-Mudkip]

I've made my own flavour from the image template all well and good, but when I got to build it as iso as per the just file it tends to error our and provide the following error, seemingly from a python:

Traceback (most recent call last):
File "/run/osbuild/bin/org.osbuild.grub2.iso", line 136, in
ret = main(args["tree"], args["options"])
File "/run/osbuild/bin/org.osbuild.grub2.iso", line 70, in main
vendor = options["vendor"]
~~~~~~~^^^^^^^^^^
KeyError: 'vendor'
Finished module org.osbuild.grub2.iso
Finished pipeline efiboot-tree
manifest - failed
Output:
Failed
error: Recipe _build-bib failed with exit code 1

Anyone know what might be up or what's happened here?

[Sir-Mudkip]

Closed, turns out there was something weird about the image builder in use locally. All good now.