Random log in Console Error "Failed to add click event property"

I'm noticing a console error "Failed to add click event property" from pendo-staging.js where the target value is occasionally undefined for an angular dropdown. This issue is difficult to reproduce since it happens infrequently, but I'd like to understand the root cause if this is a known issue and has been reported by others in the past?

function bu(e) {
                var n = {};
                return {
                    getEventProperties: function() {
                        return n
                    },
                    addEventProperty: function(e, t) {
                        $.isString(e) && !$.isUndefined(t) ? n[e] = t : Z.error("Failed to add click event property")
                    },
                    target: e
                }
            }