I’m using  editor on a second monitor (larger than first one). Moving objects in perspective view frame fails with any input source: track pad, mouse or wacom pen. It doesn’t move at all. When I’m trying to move an object in any orthogonal view  mouse cursor and an object are “jumping” to unexpected position and then I can move it. There’s no such problem when editor is opened on  first monitor.
OS X Mavericks, Unreal Engine 4.5.1
             
            
              
              
              
            
            
           
          
            
            
              Hi Anatoly,
Thanks for your report! I was able to reproduce  behavior you are seeing in a second monitor, and have entered a bug report for our developers (UE-5290). I will let you know when I see any updates.
             
            
              
              
              
            
            
           
          
            
            
              How long it usually takes to fix it?
             
            
              
              
              
            
            
           
          
            
            
              It depends on  problem, but once our developers are aware of an issue they try to fix it as quickly as possible. Being able to reproduce  issue internally makes it much easier to locate  source of  issue. Once  issue is fixed, it will usually go out with  next release. It may be too late to make it into 4.6, but if it is fixed in time this could appear in 4.7.