Since I recently installed VS 2015 Update 3 the application keeps crashing very often when the intellisence/suggestions drop down is shown in the C# editor. Occasionally it doesn't and occasionally it only freezes for a long time, then works again.
But it crashes more often than not.
I've especially noticed this when editing XML documentation tags, but also in the C# code per se.
Unfortunately I also updated a bunch of extensions at the same time as Update 3 (one never learn). Guess next step is to rule them out one by one before blaming VS :(
I've already tried to disable Developer Assistant, as it was the first item shown in the drop down. Didn't help.
FYI I've also installed this KB-update:

Someone else experiencing this? Suggestions?
Thanks!