Upgrade StructureMap to 3.1.9.463
It's wise to update structuremap-signed to the version 3.1.9.463 released October 18, 2016.
Epi is using this signed package and maybe your own implementations of various services also are.
As you can see in the following GitHub pages there was some code back-ported fixing nasty stuff around threading, cache and lock handling.
Published and tagged with these categories: Episerver, ASP.NET, Troubleshooting