diff --git a/misc/core.func b/misc/core.func
index ac7477a..6362231 100644
--- a/misc/core.func
+++ b/misc/core.func
@@ -1,11 +1,13 @@
 # Copyright (c) 2021-2025 community-scripts ORG
 # License: MIT | https://raw.githubusercontent.com/community-scripts/ProxmoxVED/main/LICENSE
 
-set -euo pipefail
-SPINNER_PID=""
-SPINNER_ACTIVE=0
-SPINNER_MSG=""
-declare -A MSG_INFO_SHOWN
+if ! declare -f wait_for >/dev/null; then
+  echo "[DEBUG] Undefined function 'wait_for' used from: ${BASH_SOURCE[*]}" >&2
+  wait_for() {
+    echo "[DEBUG] Fallback: wait_for called with: $*" >&2
+    true
+  }
+fi
 
 # ------------------------------------------------------------------------------
 # Loads core utility groups once (colors, formatting, icons, defaults).