Triggering a HotReload Compile when Start up is Manual can result in an Editor crash: Assertion failed: GIsHotReload, Trying to recreate class outside of hot reload!

Core - Hot Reload - Jun 30, 2019

Torrigered when hotreload is performed in a case where code referencing to dll. Crash when restarting from VisualStudio. It didn’t see in 4.21. Workaround:   Delete the Intermediate folder and e ...

Editor can crash while performing a Hot Reload after a custom UClass class is added to the project

Core - Hot Reload - Mar 14, 2019

Performing a Hot Reload after creating a custom UClass class can result in a crash. This was reported on Linux, but reproduced on Windows. Additional testing will be done on Linux to confirm the is ...

Hot Reload fails if a project and Engine are placed next to each other in the same root folder that has the same name as the project

Core - Hot Reload - Jan 8, 2019

Hot Reload does not work if a project and the Engine that project is associated with are placed next to each other in the same root folder that shares the same name as the project. During the Hot Re ...

Hot Reload cannot be performed when using the DebugGame Editor configuration

Core - Hot Reload - Dec 31, 2018

In 4.21.1 it is no longer possible to perform a Hot Reload when the game is open in the Editor and using the DebugGame Editor configuration. REGRESSION: Yes. A Hot Reload was possible in 4.20.3 whe ...

Hot reload fails after adding a Static Mesh Component to a new Actor code class in a project that was originally Blueprint-only

Core - Hot Reload - Oct 25, 2018

Starting a hot reload by clicking the Compile button in the Editor fails after adding a Static Mesh Component to an Actor code class. This only occurs in the binary version of the Engine, and only i ...

Hot Reload fails when project code class that derives from a plugin code class is modified

Core - Hot Reload - Oct 11, 2018

Hot Reloading fails in 4.21 if a project code class that derives from a plugin code class is modified. The Editor appears to be looking for a corresponding Hot Reload .dll for the plugin, even thoug ...

Hot Reload triggers Ensure after default value of a property in a component included in an Actor class is changed

Core - Hot Reload - Sep 13, 2018

Performing a Hot Reload after changing the default value of a property in an ActorComponent that is included in an Actor class triggers an ensure if a Blueprint has been created from that Actor clas ...

Plugin module is not reloaded when a game module that depends on the plugin module is hot reloaded

Core - Hot Reload - Jun 28, 2018

Performing a hot reload after modifying game code (plugin code is unmodified) does not also reload plugin modules. In the attached project, there are some log messages output when the plugin module ...

Rebuild (with hot reload) fails on newly-created projects

Core - Hot Reload - Jan 18, 2018

Performing a Rebuild with a hot reload on a brand new code project will fail unless both the Editor and Visual Studio have first been closed and then re-opened. The same result occurs if a Clean is ...

Hot Reload wipes all elements of UProperty TArrays in Blueprint subclasses

Core - Hot Reload - Dec 5, 2017

Hot reloading a change that affects a class that contains a TArray UProperty will wipe all of the array elements of any Blueprint subclasses of that class. Regression?: Yes This does not occur in 4 ...