diff --git a/PV_Forecast_plotmemory/module.php b/PV_Forecast_plotmemory/module.php
index 24d28e0..b354a20 100644
--- a/PV_Forecast_plotmemory/module.php
+++ b/PV_Forecast_plotmemory/module.php
@@ -25,12 +25,19 @@ class PV_Forecast_plotmemory extends IPSModule
         $this->RegisterPropertyString("SnapshotTime", "23:59");   // HH:MM
         $this->RegisterPropertyInteger("KeepDays", 30);
 
+        // Important: Prevent tile from triggering URL fetch (strict daily behavior)
+        $this->RegisterPropertyBoolean("AllowTileFetchIfEmpty", false);
+
         // Timer
         $this->RegisterTimer("UpdateForecastTimer", 0, 'IPS_RequestAction($_IPS["TARGET"], "UpdateForecast", 0);');
         $this->RegisterTimer("SnapshotTimer", 0, 'IPS_RequestAction($_IPS["TARGET"], "SnapshotTick", 0);');
 
         // WebHook endpoint
         $this->RegisterHook("/hook/solcastcompare_plotmemory");
+
+        // Persisted run markers (survive restarts)
+        $this->RegisterAttributeInteger("LastDailyRunForecast", 0);
+        $this->RegisterAttributeInteger("LastDailySnapshotRun", 0);
     }
 
     public function ApplyChanges()
@@ -46,7 +53,7 @@ class PV_Forecast_plotmemory extends IPSModule
             $mins = max(1, (int)$this->ReadPropertyInteger("RefreshMinutes"));
             $this->SetTimerInterval("UpdateForecastTimer", $mins * 60 * 1000);
         } else {
-            // daily check each minute
+            // daily: check each minute
             $this->SetTimerInterval("UpdateForecastTimer", 60 * 1000);
         }
 
@@ -56,8 +63,6 @@ class PV_Forecast_plotmemory extends IPSModule
         } else {
             $this->SetTimerInterval("SnapshotTimer", 0);
         }
-
-        $this->RegisterHook("/hook/solcastcompare");
     }
 
     public function RequestAction($Ident, $Value)
@@ -98,13 +103,13 @@ class PV_Forecast_plotmemory extends IPSModule
         $now = time();
         $nowSec = ((int)date("H", $now) * 3600) + ((int)date("i", $now) * 60);
 
-        $lastRun = (int)$this->GetBuffer("LastDailyRunForecast");
+        $lastRun = (int)$this->ReadAttributeInteger("LastDailyRunForecast");
         $today0 = strtotime("today");
 
         if ($nowSec >= $targetSec && $lastRun < $today0) {
             $this->SendDebug("Scheduler", "Taegliches Forecast-Update (" . $timeStr . ")", 0);
             $this->UpdateForecast();
-            $this->SetBuffer("LastDailyRunForecast", (string)$now);
+            $this->WriteAttributeInteger("LastDailyRunForecast", $now);
         }
     }
 
@@ -126,7 +131,8 @@ class PV_Forecast_plotmemory extends IPSModule
         $now = time();
         $nowSec = ((int)date("H", $now) * 3600) + ((int)date("i", $now) * 60);
 
-        $lastRun = (int)$this->GetBuffer("LastDailySnapshotRun");
+        // IMPORTANT: use Snapshot marker, not Forecast marker
+        $lastRun = (int)$this->ReadAttributeInteger("LastDailySnapshotRun");
         $today0 = strtotime("today");
 
         if ($nowSec >= $targetSec && $lastRun < $today0) {
@@ -140,7 +146,7 @@ class PV_Forecast_plotmemory extends IPSModule
             $this->CreateDailySnapshotForDate(new DateTime('today', new DateTimeZone(date_default_timezone_get())));
             $this->CleanupOldSnapshots();
 
-            $this->SetBuffer("LastDailySnapshotRun", (string)$now);
+            $this->WriteAttributeInteger("LastDailySnapshotRun", $now);
         }
     }
 
@@ -188,7 +194,9 @@ class PV_Forecast_plotmemory extends IPSModule
 
     public function GetVisualizationTile(): string
     {
-        if ($this->GetBuffer("ForecastRaw") === "") {
+        // Strict daily mode: do NOT fetch from URL when tile is opened.
+        // If you really want this fallback, enable AllowTileFetchIfEmpty.
+        if ($this->GetBuffer("ForecastRaw") === "" && $this->ReadPropertyBoolean("AllowTileFetchIfEmpty")) {
             $this->UpdateForecast();
         }
 
@@ -451,7 +459,6 @@ class PV_Forecast_plotmemory extends IPSModule
         $forecastJson = json_encode($payload["series"]["forecast"] ?? []);
         $actualJson   = json_encode($payload["series"]["actual"] ?? []);
 
-        // Hinweis: nutzt Highcharts CDN. (Wenn du offline öffnen willst, sag Bescheid, dann liefern wir highcharts.js lokal mit.)
         return '<!doctype html>
 <html lang="de">
 <head>
@@ -554,7 +561,7 @@ class PV_Forecast_plotmemory extends IPSModule
             echo "No snapshots found";
             return;
         }
-        $kunde = trim($this->ReadPropertyString("kunde"));
+
         $kunde = trim($this->ReadPropertyString("kunde"));
         if ($kunde === "") {
             $kunde = "unbekannt";
@@ -565,10 +572,10 @@ class PV_Forecast_plotmemory extends IPSModule
 
         header("Content-Type: application/zip");
         header(
-        'Content-Disposition: attachment; filename="pv_plots_' .
-        $kundeSafe . '_' .
-        $this->InstanceID . '_' .
-        $days . 'days.zip"'
+            'Content-Disposition: attachment; filename="pv_plots_' .
+            $kundeSafe . '_' .
+            $this->InstanceID . '_' .
+            $days . 'days.zip"'
         );
         header("Content-Length: " . filesize($zipPath));