diff --git a/vm/unifi-os-server-vm.sh b/vm/unifi-os-server-vm.sh
index e93476650..f51377c06 100644
--- a/vm/unifi-os-server-vm.sh
+++ b/vm/unifi-os-server-vm.sh
@@ -87,11 +87,18 @@ function get_valid_nextid() {
   local try_id
   try_id=$(pvesh get /cluster/nextid)
   while true; do
+    # Check if VM config exists
     if [ -f "/etc/pve/qemu-server/${try_id}.conf" ] || [ -f "/etc/pve/lxc/${try_id}.conf" ]; then
       try_id=$((try_id + 1))
       continue
     fi
-    if lvs --noheadings -o lv_name | grep -qE "(^|[-_])${try_id}($|[-_])"; then
+    # Check if VM or CT actually exists (running or stopped)
+    if qm status "$try_id" &>/dev/null || pct status "$try_id" &>/dev/null; then
+      try_id=$((try_id + 1))
+      continue
+    fi
+    # Check if LVM volumes with this ID exist
+    if lvs --noheadings -o lv_name 2>/dev/null | grep -qE "(^|[-_])${try_id}($|[-_])"; then
       try_id=$((try_id + 1))
       continue
     fi