SEP14RU1 - Memory Exploit Mitigation breaks IE11

So we are in the process of upgrading our clients from SEP12RU6MP7 to SEP14RU1.

After the initial restart when installing the new version, IE11 is not starting up anymore.
Error Message:

iexplore.exe
The application was unable to start correctly (0xc0000005). Click OK to close the application

Event Log:

Faulting application name: iexplore.exe, version: 11.0.9600.18838, time stamp: 0x59e1b492Faulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000Exception code: 0xc0000005Fault offset: 0x00000000004e0a8aFaulting process id: 0x2140Faulting application start time: 0x01d3650967e64262Faulting application path: C:\Program Files\Internet Explorer\iexplore.exeFaulting module path: unknownReport Id: a59c52d1-d0fc-11e7-aae2-ecb1d7725227

When disabling the Memory Exploit Mitigation policy, everything works fine again.
The policy even was set to "Set the protection action for all techniques to log only". Bummer.

So, what's the issue here?