Partial unmapping of flexible allocations needed for Uncharted 4

[StevenMiller123]

Uncharted 4 occasionally crashes on [Debug] <Critical> address_space.cpp:operator():472: Assertion Failed! Partial unmapping of flexible allocations is not supported

I'm making this issue to track this error, as the comment near this assertion in the code suggests this is a rarely encountered issue.

Here is the log for reference: CUSA00341 Uncharted 4 Log.txt