Check whether if any other previous instance of the process/app (Infinity) is still running in the background ??
Open the TASK MANAGER (CTRL+ALT+DELETE, or CTRL+SHIFT+ESC), and close any background task related to the Infinity process, as well as your game’s exe (Mirror’s edge 2), if they are still running and open.
After that, try restarting Infinity. Try to attach and run INFINITY, after you have started the game (once the campaign level has been fully loaded).
Can you play all other games via INFINITY, or is this just related to Mirror’s Edge only ? If need be, completely re-install and update the infinity software/app.
Disable any AntiVirus/AV, as well as firewall installed on your system, for the time being, even though this might not be necessary.
Side note:
Sometimes just doing a reinstall doesn’t help, so try to use any “Registry cleaner” to remove previous traces of Infinity from the registry.
Before you re-install Infinity, kindly remove and delete ALL previous traces on your system (use any REGISTRY cleaner/repair tool, if need be).
Go to the following location and path, and manually delete both the “Daring Development” and “Infinity” folders, if they are still there.
C:\Users\Your- Windows USERNAME\AppData\local\Daring Development, as well as C:\Users\Your- Windows USERNAME\AppData\local\Infinity.
Look for the ROAMING folder as well, under AppData. Remove the CACHE folder.
Some folders can found under “Roaming” as well, e.g, . C:\users\Your username\AppData\Roaming\Daring development\Infinity\CACHE.
Check this installed path as well, i.e. C:\Users\Your UserName\AppData\Local\Package cache{some random numbers} folder, if this has been created.