[Crash] when veiwing lighting options in editor

ok this happen when i go to view the lighting options in the editor, normal i just use “Lit” and “wireframe” but when checking for a problem for some one else i moved the mouse further down the list, just holding the mouse over the “Visualize Buffer” section of the menu causes Rocket to crash with the following report

here the crash paste
Assertion failed: Actions.BufferVisualizationModeCommands.Contains(ViewportCommandName) [File:D:\BuildFarm\buildmachine_++depot+UE4-Rocket+Beta4\Engine\Source\Editor\LevelEditor\Private\SLevelViewportToolBar.cpp] [Line: 738]

Stack:
Address = 0xeec293a6 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeeb29b6a (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe5e12822 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xe5d7ee50 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xe5db2b44 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xec51d201 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec508d26 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec28afaa (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec28d326 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec42bf52 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec53b094 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec5259d8 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec383377 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec37a39e (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xeec08b3d (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeebfacca (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeec09556 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeebf68d2 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x76e5c3c1 (filename not found) [in C:\Windows\system32\USER32.dll]
Address = 0x76e5c60a (filename not found) [in C:\Windows\system32\USER32.dll]
Address = 0xeec2e559 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeec09beb (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x3f075e64 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f06cb8c (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f06cbfa (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f07772b (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f0783c3 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x76f5f56d (filename not found) [in C:\Windows\system32\kernel32.dll]
Address = 0x77093281 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]
Address = 0x77093281 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]


Address = 0xfd32aa7d (filename not found) [in C:\Windows\system32\KERNELBASE.dll]
Address = 0xeec2765b (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeeb42484 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeeb29c0f (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xe5e12822 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xe5d7ee50 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xe5db2b44 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-LevelEditor.dll]
Address = 0xec51d201 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec508d26 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec28afaa (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec28d326 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec42bf52 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec53b094 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec5259d8 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec383377 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xec37a39e (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Slate.dll]
Address = 0xeec08b3d (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeebfacca (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeec09556 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeebf68d2 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x76e5c3c1 (filename not found) [in C:\Windows\system32\USER32.dll]
Address = 0x76e5c60a (filename not found) [in C:\Windows\system32\USER32.dll]
Address = 0xeec2e559 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0xeec09beb (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor-Core.dll]
Address = 0x3f075e64 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f06cb8c (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f06cbfa (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f07772b (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x3f0783c3 (filename not found) [in D:\Rocket\Engine\Binaries\Win64\RocketEditor.exe]
Address = 0x76f5f56d (filename not found) [in C:\Windows\system32\kernel32.dll]
Address = 0x77093281 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]
Address = 0x77093281 (filename not found) [in C:\Windows\SYSTEM32\ntdll.dll]

Hi George,

Thank you for your report. I have investigated this issue and compared it to our database. This particular crash is known and has been resolved in our internal build. This will no longer occur in a future release of Rocket. If you encounter any other crashes, please let us know and I will be happy to further assist you.

Thank you,

Alexander

Sorry to have wasted your time with a known bug, i didn’t notice when posting

might be an idea to maintain a bug list for us to compare with before posting