Static mesh instances in 4.4.1 hotfix reliably crash editor on Mac OS X

Development Asset Creation
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Since the 4.4.1 hotfix, any attempt to add an instance to an instanced static mesh component will crash the editor 100% of the time. This only occurs on my Mac running OS X 10.9.4 (not my Windows 8 machine) and was not happening in 4.4.0 pre-hotfix. The crash happens regardless of the project, as it will happen even when loading the Blueprint Office example content (which uses instanced static meshes). Error output follows:

SIGSEGV: invalid attempt to access memory at address 0x3

EngineCrashHandler(FGenericCrashContext const&) Address = 0x337e68f (filename not found) [in UE4Editor]
PlatformCrashHandler(int, __siginfo*, void*) Address = 0x348866f (filename not found) [in UE4Editor-Core.dylib]
_sigtramp() Address = 0x8c6e75aa (filename not found) [in libsystem_platform.dylib]

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Hey SF,

As explained in this thread, last week we inadvertently released a rollback patch that reverted 4.4.0 to 4.4 preview for some users. Today we’ve released a patch to fix it - if you open the Launcher you should see an Update prompt. Other users have had a similar (SIGSEGV… at 0x3) crash, albeit in dougb’s case not on Mac. Can you try Updating and see if that fixes the problem? I’ve reported the issue internally as well, so we’ll get someone right on it if the update doesn’t help.

Regards,

Jonathan

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That fixed it! I wondered why it still said 4.4.0. I guess I mustn’t have updated my Windows machine during the period the rollback was being served. Thanks!