@Jrgong@richard I’ve pushed fixes for this issue, which is a “compatibility issue” (i.e. Discourse has changed) to the Custom Wizard Plugin and the Mentionables Plugin. The fixes are specifically looking to fix the exception per se. I haven’t tested the mentionables integration itself with the new changes to discourse/discourse thoroughly as I want to ensure this issue is addressed first. That integration should work, but that may also require further work.
note. Also moved this to mentionables, as it’s more a mentionables issue than a CW issue.