For a while now when running application from within Qt Creator, i would get a message along the lines of:

SHIMVIEW: ShimInfo(Complete)
FTH: (21572): *** Fault tolerant heap shim applied to current process. This is usually due to previous crashes. ***

It looks like somewhere along the line Qt Creator was marked by Windows subsystem “Fault Tolerant Heap“. The system seems to detected repeated problems with a program and apply mitigations to prevent crashes in the

Whats important about this however, is that certain programs being ran /debugged from Qt Creator where not functioning correctly. For example, WebEngineView was taking an exceeding long time to load web pages if they loaded at all and inputs (mouse, keyboard) where being completely ignored.

Why Qt Creator was marked i’m not sure; Awhile back Qt Creator was having problems when loading i.e. taking a long time to open. However i thought today i’d fix the problem, which turned out to be quick and easy. The below images shows where to navigate in your Registery Editor and then simply delete the QtCreator entry.