diff --git a/FS25_ADSmartPickup/adCpBridge.lua b/FS25_ADSmartPickup/adCpBridge.lua
index 29c132b..6931946 100644
--- a/FS25_ADSmartPickup/adCpBridge.lua
+++ b/FS25_ADSmartPickup/adCpBridge.lua
@@ -550,7 +550,10 @@ function ADCpBridge.start(vehicle, fieldX, fieldZ, onDone, opts)
             Logging.warning("ADSmartPickup: kunne ikke kopiere kursus: %s — laver nyt", tostring(copyError))
         end
         setMultiTools(vehicle, opts.multiTools or 1)
+        -- kursusberegningen kører over mange frames på store marker: moden venter længere imens
+        handle.generating = true
         job:onClickGenerateFieldWorkCourse(function(generated)
+            handle.generating = false
             if handle.cancelled then return end
             if not generated then return finish(false, "Courseplay kunne ikke lave kursus") end
             startWithCourse()
diff --git a/FS25_ADSmartPickup/adFieldJobs.lua b/FS25_ADSmartPickup/adFieldJobs.lua
index 80c5b59..708498f 100644
--- a/FS25_ADSmartPickup/adFieldJobs.lua
+++ b/FS25_ADSmartPickup/adFieldJobs.lua
@@ -108,6 +108,14 @@ function ADFieldJobs.assignmentCount()
     return count
 end
 
+-- Har Courseplay-starten taget for lang tid? Mens CP beregner kursus (store marker), må det tage op til
+-- COURSE_GENERATE_MS; ellers START_MS (in-game 27/9 F90: 140 ha tog over 60 s, og moden opgav midt i beregningen).
+ADFieldJobs.START_MS = 60000
+ADFieldJobs.COURSE_GENERATE_MS = 300000
+function ADFieldJobs.startTimedOut(elapsed, generating)
+    return elapsed > (generating and ADFieldJobs.COURSE_GENERATE_MS or ADFieldJobs.START_MS)
+end
+
 -- Beslutning for én mark. assignments = sæt på marken ({phase, stage, helper}); kun sæt på det aktuelle
 -- trin tæller (en aflæsningsvogn på vej hjem fra høsten forstyrrer ikke kultiveringen).
 -- env = {raining = bool}: vejrfølsomme trin (høst/slå/vend/riv/hø) sendes ikke ud i regn.
diff --git a/FS25_ADSmartPickup/adFieldWork.lua b/FS25_ADSmartPickup/adFieldWork.lua
index 00696a0..0b6c8f4 100644
--- a/FS25_ADSmartPickup/adFieldWork.lua
+++ b/FS25_ADSmartPickup/adFieldWork.lua
@@ -1068,9 +1068,10 @@ function ADFieldWork.follow(adEnv, assignment)
             beginWork(adEnv, field, info, assignment)
         end
     elseif assignment.phase == "starting" then
-        if now() - assignment.since > ADFieldWork.START_TIMEOUT_MS then
+        local generating = assignment.handle ~= nil and assignment.handle.generating == true
+        if ADFieldJobs.startTimedOut(now() - assignment.since, generating) then
             ADFieldWork.release(assignment)
-            fail(assignment.fieldId, "Courseplay svarede ikke (60 s)")
+            fail(assignment.fieldId, generating and "Courseplay blev ikke færdig med kurset (5 min)" or "Courseplay svarede ikke (60 s)")
         end
     elseif assignment.phase == "working" then
         followWorking(adEnv, field, assignment)
diff --git a/FS25_ADSmartPickup/modDesc.xml b/FS25_ADSmartPickup/modDesc.xml
index c4dc898..09a3885 100644
--- a/FS25_ADSmartPickup/modDesc.xml
+++ b/FS25_ADSmartPickup/modDesc.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="no"?>
 <modDesc descVersion="107">
     <author>masterdraco</author>
-    <version>1.42.3.0</version>
+    <version>1.42.4.0</version>
     <title>
         <en>AD Smart Pickup</en>
     </title>
diff --git a/tests/test_adFieldJobs.lua b/tests/test_adFieldJobs.lua
index 96e06fb..0a448e7 100644
--- a/tests/test_adFieldJobs.lua
+++ b/tests/test_adFieldJobs.lua
@@ -170,5 +170,12 @@ do
     check("HH klargøring med halv mark stående -> spol tilbage", J.decide(cultivating, halfInfo, {}, 0).action, "rewind")
 end
 
+
+-- startTimedOut: CP må beregne kursus i op til 5 min (in-game 27/9 F90: 140 ha tog over 60 s, moden opgav midt i)
+check("ST start uden beregning > 60 s -> opgiv", ADFieldJobs.startTimedOut(61000, false), true)
+check("ST beregner stadig efter 90 s -> vent", ADFieldJobs.startTimedOut(90000, true), false)
+check("ST beregner over 5 min -> opgiv", ADFieldJobs.startTimedOut(301000, true), true)
+check("ST under 60 s -> vent", ADFieldJobs.startTimedOut(30000, false), false)
+
 print(failures == 0 and "\nALLE TESTS OK" or ("\n" .. failures .. " FEJL"))
 os.exit(failures == 0 and 0 or 1)