Schedules cannot be edited in AWX 13.0.0. It seems to be some kind of templating error.
Install fresh AWX deployment and click on Schedules -> Cleanup Activity Schedule
Possibility to edit Scheduled Job

Got the same errors.
Seems to occur only when the _Repeat Frequency_ is set to "Week"
Hey @kenchrcum - we've just merged a patch for this. It'll be fixed in the next release of awx.
is there a workaround until this pull request is approved and merged (or did it happen already and I'm just dense)?
@Aech1977 the fix has merge into AWX, but we haven't made an official release of AWX since then (we're likely going to release a new version in the coming weeks).
I'll sit tight then. Thanks. Another dumb question I know I came across it before but where can I see release versions?
Thanks for the speedy response.
Hey @Aech1977,
New releases show up here: https://github.com/ansible/awx/releases
We publish official images to Dockerhub: https://hub.docker.com/r/ansible/awx
Additionally, we have an official changelog at: https://github.com/ansible/awx/blob/devel/CHANGELOG.md
...and we announce releases on our mailing list: https://groups.google.com/forum/#!forum/awx-project
thanks
Fix in version 14.0.0 verified. Thank you everybody :)
Most helpful comment
Hey @kenchrcum - we've just merged a patch for this. It'll be fixed in the next release of awx.