4.19 Can't launch when use Metal 2.0(iOS)

After I upgraded to ver4.19,I can’t launch my game on iPhone.
And I also test on a new Third Person project,and the result is same if I use Metal 2.0 and Desktop-Forward Renderer><.(It’s working when use Metal 1.0 and unchecked Desktop-Forward Renderer)

This is my project settings:

235460-111.jpg

My device is iPhone 8 Plus and OS is iOS11.0.

I find Live Link be enabled in 4.19.May be it is the reason.But when I disabled it,project can’t be packaged for iOS on windows and this kind of error message jumped outT_T(Also in a new project):

PackagingResults: Error: Remote compiling requires a server name. Please specify one in the Remote Server Name settings field.

Has anyway fix this issue?Thanks for an answer><

Same here !

same BUG please fix it