Keep getting error "Unable to load data: ApplicationSet <appset-name> not found in any namespace"

[vezzalinistefano]

This error keeps showing in the low-right part of the screen when opening an appset-generated app. ArgoCD still works as expected.

Also this is showing up for every app even tough I've never eneabled progressive sync:

This happened after upgrading the ArgoCD helm chart to 8.6.1.

Current versions:

{
    "Version": "v3.1.8+becb020",
    "BuildDate": "2025-09-30T15:33:46Z",
    "GitCommit": "becb020064fe9be5381bf6e5818ff8587ca8f377",
    "GitTreeState": "clean",
    "GoVersion": "go1.24.6",
    "Compiler": "gc",
    "Platform": "linux/amd64",
    "KustomizeVersion": "v5.7.0 2025-06-28T07:00:07Z",
    "HelmVersion": "v3.18.4+gd80839c",
    "KubectlVersion": "v0.33.1",
    "JsonnetVersion": "v0.21.0"
}

[cjohnston-lear]

We are experiencing this exact same behavior. Could you tell us if you see this same error when logged in to kubeadmin into ArgoCD? The issue goes away when we log in as KubeAdmin (not that we'd ever want to do this functionally).

[vezzalinistefano]

I updated ArgoCD to 3.1.9 and the problem went away