Application stuck at Deleting but resources are already deleted

[lorrainebatol]

argoproj/argocd:v1.8.7

I have helm charts (1 with ingress, 1 with deployment/service/cm).
It has sync policies of automated (prune and self-heal). When trying to delete them from the dashboard, they are getting deleted (no more on the k8s cluster), however the status on the dashboard stuck at Deleting and it's been an hour already.

If I try to click sync, it shows -> Unable to deploy revision: application is deleting.
Any ideas why it's stuck on Deleting status even though all resources have been deleted already?

Thanks!