Hi Keith,
For your issue with Module 21, I responded with the error I am seeing and the potential solution in this thread that you commented on.
For the Module 12 assessment, there looks to be a similar issue where one of the changes to the component.js of the file hasn’t been added. The link target within the CTA should be target: '_blank' but currently it is target: linkTarget.
For the Module 13 assessment, the subtitle input needs tweaking. It should look something like: 'In partnership with: ' + Formatter.joinList(profile.c_localNonProfits)
Let me know if this works for you!