SRV R711 Bugs - Coupling Bug, no sound

Trainz 2 Mac

I have encountered 2 bugs with S301s R711 beta. When I couple to other wagons & locos, the following bug appears and I can not access the quick drive window.

Bug:

ACSlib : File acslib.gs, Line 785, ER_NullReference

function $void@ACSlib::fineConnectEnds(Vehicle), line -1
function $string@ACSlib::LibraryCall(string,string[],GSObject[]), line 381
function $void@wagon::Init(), line 331
function $void@MeshObject::Init(Asset), line 316

The other bug is the engine sound, there is a kuid for an enginesound which works fine, but doesn't work with the R class.

-Eno Silvie