Definitely still a problem as of 2017.1.1f1, although it seems to be a more infrequent.

Why is this not fixed yet?

Personally I find it ridiculous that if you want a bug fixed the latest beta isn't good enough you need special patched versions. For those that didn't see, those are found here:

https://unity3d.com/unity/qa/patch-releases?version=2017.1

This usually happens to me when I hit play, but my works seems to be getting saved by an AutoSave asset before crash. whew. Can't recommend enough.

https://www.assetstore.unity3d.com/en/#!/content/43605

issue still present in 2017 1f3

An issue in 2017.1.1f1

Very annoying........

This is still a problem in 2017.1.1f1. It happens randomly and it is very frustrating! One can actually lose a big deal of work because of this!

*Update on installing p1 to take care of kmaxcallback issue.*

Installed p2, didnt work. Realized p1 had a specific patch for it, uninstalled unity entirely from Mac. Installed fresh p1, logged in, worked on the project, everything worked fine. Logged into the machine next day, p1 doesnt show any of the builds installed with unity, no android, no ios, not even web-gl. Everytime the same project which worked till yesterday, when opened today in p1 says android build, iOS build isnt installed. We had a game planned for Unite India in November, third day with issues now, this is wasting precious time in crunch period. I am an indie, we cannot up and organize another machine to run unity on in a few days :(

This is very frustrating.

had a grey screen issue after unity crashed with the kmax callback for the third time in 3 days. Downloaded 2017.1.1p2

Still the same problem, grey screen, wont show login or project selection options.

Here's my log file:

COMMAND LINE ARGUMENTS:
/Applications/Unity/Unity.app/Contents/MacOS/Unity
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
[warn] kq_init: detected broken kqueue; not using.: Undefined error: 0
[CEF] undefined in file:///%2FUsers%2Fyadayadayada%2FLibrary%2FUnity%2FPackages%2Fnode_modules%2Funity-editor-home%2Fdist/assets/unity-editor-home.js at line 39
Request timed out while processing request "https://core.cloud.unity3d.com/api/login", HTTP error code 0
.[UnityConnect] Request timed out.
Request timed out while processing request "https://core.cloud.unity3d.com/api/login", HTTP error code 0
.[UnityConnect] Request timed out.
Callback unregistration failed. Callback not registered.

(Filename: /Users/builduser/buildslave/unity/build/Runtime/Core/Callbacks/CallbackArray.h Line: 192)

Checking for leaked weakptr:
Found no leaked weakptrs.
##utp:{"type":"MemoryLeaks","allocatedMemory":281729,"memoryLabels":[{"Default":1664},{"Manager":208},{"BaseObject":10496},{"Terrain":224},{"String":5788},{"DynamicArray":36},{"PoolAlloc":-224},{"GI":1256},{"EditorGui":64},{"EditorUtility":544},{"RestService":256},{"License":252176},{"UnityConnect":9232},{"Collab":9}]}

Tried sending bug reports with updates of error logs, no reply for unity. This is frustrating. Completely uninstalled and reinstalled Unity twice, nothing works.

Am going to try booting up with a horse shoe or a 4leaf-clover, maybe that'll help.

If this is fixed in 2017.1.1p1 why is it not being pushed to the public?? I just lost my entire project to this and I'm running the latest non-beta release 2017.1.1f1 according to the Unity updater and the latest installer.