All our dependencies for our Groups were broken after upgrading to NPM 11.5, I ended up just deleting the groups and dependencies and re-recreating them, wasn't worth the risk messing around after the first time when our alerting didn't work as expected (parent was in the group, went down, and never alerted). That worked for us as we only have about 5 groups defined, would hate to do that if you had dozens/hundreds of groups
Probably broken due to the change where in NPM 11.5 the Parent Node must be outside of the group (Child). In prior versions the parent node could be within the group.
Ours didn't break during the upgrade. This just seems to be a bug I have noticed anytime an existing dependency gets changed.
I just ran into this, replaced a switch and both dependencies (router-switch and switch-nodegroup) dropped from the list, but I was not able to re-add them with the same name. Only problem I have run into so far since upgrading to 11.5.1