Virtual Texturing causes crash

Virtual streaming a 4K texture and setting the max texture size to 2048 causes the engine to crash.

Tested in 4.21.2 (CL - 4753547), 4.22.3 (CL - 7053647), 4.23 (CL - 7445012), 4.24(CL - 7646041)

1. Import the attached texture into a Blank project
2. Open the texture through Asset Actions > Bulk Edit via Property Matrix
3. Enable Virtual Texture Streaming 
4. Double click the texture to open the default Texture Editor
5. Change the Maximum Texture Size under the Compression settings

Expected: The texture is streamed at 2K

Result: The engine crashes

Assertion failed: BlockData.SizeX << BlockData.MipBias == BlockSizeX [Link Removed] [Line: 894]

UE4Editor_Core!FWindowsErrorOutputDevice::Serialize() [e:\daniel.hamilton_ue4main\engine\source\runtime\core\private\windows\windowserroroutputdevice.cpp:79]
UE4Editor_Core!FOutputDevice::LogfImpl() [e:\daniel.hamilton_ue4main\engine\source\runtime\core\private\misc\outputdevice.cpp:71]
UE4Editor_Core!AssertFailedImplV() [e:\daniel.hamilton_ue4main\engine\source\runtime\core\private\misc\assertionmacros.cpp:101]
UE4Editor_Core!FDebug::CheckVerifyFailedImpl() [e:\daniel.hamilton_ue4main\engine\source\runtime\core\private\misc\assertionmacros.cpp:445]
UE4Editor_Engine!FVirtualTextureDataBuilder::BuildSourcePixels() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\vt\virtualtexturedatabuilder.cpp:894]
UE4Editor_Engine!FVirtualTextureDataBuilder::Build() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\vt\virtualtexturedatabuilder.cpp:352]
UE4Editor_Engine!FTextureCacheDerivedDataWorker::BuildTexture() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\texturederiveddatatask.cpp:220]
UE4Editor_Engine!FTextureCacheDerivedDataWorker::Finalize() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\texturederiveddatatask.cpp:484]
UE4Editor_Engine!FTexturePlatformData::Cache() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\texturederiveddata.cpp:853]
UE4Editor_Engine!UTexture::CachePlatformData() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\texturederiveddata.cpp:1527]
UE4Editor_Engine!UTexture2D::UpdateResource() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\texture2d.cpp:738]
UE4Editor_Engine!UTexture::PostEditChangeProperty() [e:\daniel.hamilton_ue4main\engine\source\runtime\engine\private\texture.cpp:283]
UE4Editor_CoreUObject!UObject::PostEditChangeChainProperty() [e:\daniel.hamilton_ue4main\engine\source\runtime\coreuobject\private\uobject\obj.cpp:447]
UE4Editor_PropertyEditor!FPropertyNode::NotifyPostChange() [e:\daniel.hamilton_ue4main\engine\source\editor\propertyeditor\private\propertynode.cpp:2132]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [e:\daniel.hamilton_ue4main\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:571]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [e:\daniel.hamilton_ue4main\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:359]
UE4Editor_PropertyEditor!FPropertyValueImpl::ImportText() [e:\daniel.hamilton_ue4main\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:268]
UE4Editor_PropertyEditor!FPropertyHandleInt::SetValue() [e:\daniel.hamilton_ue4main\engine\source\editor\propertyeditor\private\propertyhandleimpl.cpp:3319]
UE4Editor_TextureEditor!FTextureDetails::OnMaxTextureSizeCommitted() [e:\daniel.hamilton_ue4main\engine\source\editor\textureeditor\private\customizations\texturedetailscustomization.cpp:191]
UE4Editor_TextureEditor!TBaseSPMethodDelegateInstance<0,FTextureDetails,0,void __cdecl(int,enum ETextCommit::Type)>::ExecuteIfSafe() [e:\daniel.hamilton_ue4main\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:369]
UE4Editor_TextureEditor!SSpinBox<int>::CommitValue() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\public\widgets\input\sspinbox.h:902]
UE4Editor_TextureEditor!SSpinBox<int>::TextField_OnTextCommitted() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\public\widgets\input\sspinbox.h:828]
UE4Editor_TextureEditor!TBaseSPMethodDelegateInstance<0,SSpinBox<int>,0,void __cdecl(FText const &,enum ETextCommit::Type)>::ExecuteIfSafe() [e:\daniel.hamilton_ue4main\engine\source\runtime\core\public\delegates\delegateinstancesimpl.h:369]
UE4Editor_Slate!FSlateEditableTextLayout::HandleCarriageReturn() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\private\widgets\text\slateeditabletextlayout.cpp:1507]
UE4Editor_Slate!FSlateEditableTextLayout::HandleKeyDown() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\private\widgets\text\slateeditabletextlayout.cpp:964]
UE4Editor_Slate!SEditableText::OnKeyDown() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\private\widgets\input\seditabletext.cpp:210]
UE4Editor_Slate!FEventRouter::Route<FReply,FEventRouter::FBubblePolicy,FKeyEvent,<lambda_21fddcfe5d8b6e57b707a8971995adc5> >() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:273]
UE4Editor_Slate!FSlateApplication::ProcessKeyDownEvent() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5176]
UE4Editor_Slate!FSlateApplication::OnKeyDown() [e:\daniel.hamilton_ue4main\engine\source\runtime\slate\private\framework\application\slateapplication.cpp:5084]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessDeferredMessage() [e:\daniel.hamilton_ue4main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1715]
UE4Editor_ApplicationCore!FWindowsApplication::DeferMessage() [e:\daniel.hamilton_ue4main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:2332]
UE4Editor_ApplicationCore!FWindowsApplication::ProcessMessage() [e:\daniel.hamilton_ue4main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:1560]
UE4Editor_ApplicationCore!FWindowsApplication::AppWndProc() [e:\daniel.hamilton_ue4main\engine\source\runtime\applicationcore\private\windows\windowsapplication.cpp:790]
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