# Can't Launch Memory Calculation... **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** unreal-editor-for-fortnite, fortnite\ **Created:** [September 17, 2024, 2:50pm UTC](https://forums.unrealengine.com/t/cant-launch-memory-calculation/2024584 "2024-09-17T14:50:54Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![ChettysHotSauce](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ChettysHotSauce](https://forums.unrealengine.com/u/ChettysHotSauce)\ **Post date:** [September 17, 2024, 2:50pm UTC](https://forums.unrealengine.com/t/cant-launch-memory-calculation/2024584/1 "2024-09-17T14:50:54Z")
### Summary The Launch Memory Calculation isn’t working for me… It’s greyed out, I have made it a private version, I run a session but it still won’t do a memory calculation, still greyed out.. and I do not know why… Please help… ### Please select what you are reporting on: Unreal Editor for Fortnite ### What Type of Bug are you experiencing? Publishing ### Steps to Reproduce - Published map as a Private Map - Launched Session - Will not do a memory Calculation ### Expected Result I should be able to get a memory calculation so I can actually publish my map, there are no errors either when launching game. ### Observed Result Nothing happens, no memory calculation happens… ### Platform(s) PC ### Island Code 7499-9780-4955 ---
**Author:** ![Hardcawcanary](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/hardcawcanary/32/906569_2.png) [@Hardcawcanary](https://forums.unrealengine.com/u/Hardcawcanary)\ **Post date:** [September 17, 2024, 3:00pm UTC](https://forums.unrealengine.com/t/cant-launch-memory-calculation/2024584/2 "2024-09-17T15:00:26Z")
Try launching a session first without doing a private upload. Once your in play/edit mode check back in UEFN editor if you can launch a memory check. If you can, it will then make a private upload When it shows the map code, don’t press the button to proceed until your edit/play mode finishes reloading. ---
**Author:** ![ChettysHotSauce](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ChettysHotSauce](https://forums.unrealengine.com/u/ChettysHotSauce)\ **Post date:** [September 17, 2024, 3:08pm UTC](https://forums.unrealengine.com/t/cant-launch-memory-calculation/2024584/3 "2024-09-17T15:08:01Z")
When I launch a session, and I am in play/edit mode, I checked back in UEFN editor and it still does not allow me to click Launch Memory Calculation ---
**Author:** ![Astrotronic](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/astrotronic/32/1194566_2.png) [@Astrotronic](https://forums.unrealengine.com/u/Astrotronic)\ **Post date:** [September 17, 2024, 3:13pm UTC](https://forums.unrealengine.com/t/cant-launch-memory-calculation/2024584/4 "2024-09-17T15:13:20Z")
Hi all, So I’d make a distinction between Play and Edit modes. - Take a look at what your settings are when you click the 3 dots next to ‘Launch Session’ My workflow - I have ‘Auto Start Game’ enabled. I click ‘Launch Session’ → Wait a painfully long time for everything to upload/launch → Press ‘ESC’ and “End game” → You’ll now be in Edit mode and see your memory bar above you. → Back in Editor, the Memory Calculation should be clickable. - When you do the Memory Calculation, it will create a private version at the same time, So I just do a Memory Calculation to create private versions. ---
**Author:** ![Hardcawcanary](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/hardcawcanary/32/906569_2.png) [@Hardcawcanary](https://forums.unrealengine.com/u/Hardcawcanary)\ **Post date:** [September 17, 2024, 5:10pm UTC](https://forums.unrealengine.com/t/cant-launch-memory-calculation/2024584/5 "2024-09-17T17:10:17Z")
Ah hah, thanks for the clarification, This makes more sense now, I didn’t realise play mode doesn’t allow the memory calc, I’ve been launching straight into edit mode for a long time. ---
**Author:** ![ChettysHotSauce](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ChettysHotSauce](https://forums.unrealengine.com/u/ChettysHotSauce)\ **Post date:** [September 17, 2024, 6:02pm UTC](https://forums.unrealengine.com/t/cant-launch-memory-calculation/2024584/6 "2024-09-17T18:02:53Z")
Thank you, yes I didn’t understand the fact you had to be in edit mode. I have got it to work. Thank you again for the help.