Numerous LogMetal: Warning: AsyncCopyFromBufferToBuffer on overlapping ranges Warnings

Numerous LogMetal: Warning: AsyncCopyFromBufferToBuffer on overlapping ranges Warnings

Warnings do not appear to be linked to any visual/performance problems in the editor. Could be safely ignored.

Warnings also occur when initiating PIE
Warnings also spammed when painting a skeletal mesh
Warnings also spammed when opening an Animation Blueprint

Reproduced on multiple other Macs, both 10.12 and 10.13
Similar warnings not seen on Linux & Windows

Probably introduced in the fix for [Link Removed]

This did not occur on previous release passes, if requested I can double check for regression though.

1. Create a First Person Blueprint Template project
2. Open Window > Developer Tools > Output Log

Result: 
Output Log contains many warnings like:

 LogMetal: Warning: AsyncCopyFromBufferToBuffer on overlapping ranges ({0, 4096} vs {0, 4096}) of destination buffer 0x7fb21184a5d0 

Expected:
Output Log does not contain these warnings