No Realms version visible - Not on screen, not in crash report

There is no way to find out what Realms version is running.
Could be handy to diagnose problems

[Mod] CubeTheThird came to this by this tweet of Ämir Moulavi

I just pushed Realms 1.2.6. This should fix upload problems that occurred on some platforms. Restart your Minecraft launcher to get it!