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[Feature Request] allow only one editor instance per project

Yesterday I had this sad adventure with UE4 when due to slow project load or some other reason I got it opened in 2 editor instances which I didn't notice. To my dismay I've started to move assets between folders which lead to breaking references as some of the assets were opened in second editor instance and failed to save. Trying to open affected blueprints crashes the editor. This could be easily avoided if editor would allow itself only one instance per project. No point having two instances at same time anyways, is there?

btw related forum topic: https://forums.unrealengine.com/showthread.php?1848-The-asset-failed-to-save

btw2 Unity has it ;p

Product Version: UE 4.9
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asked Oct 01 '15 at 07:20 AM in Everything Else

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laggyluk
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avatar image erinacea Oct 01 '15 at 07:36 AM

Not sure if it counts as different projects, but I often have different checkouts of the same project open at the same time to merge Blueprint changes. (When I made some local changes while the asset was locked by someone else.)

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