Hello Hexerin,
Sorry for the late response.
No worries!
We have tested Fortnite and Final Fantasy XIV's DirectX 11 hooking and we were not able to recreate your issue while recording these games.
In both cases, how did you go about testing? I see I failed to be clear when describing the issue I'm having, so any confusion is my bad.
The hooks don't fail immediately on game launch (usually, sometimes they do if Bandicam has been running for several hours but it isn't consistent). They do fail, and consistently, after the game's been running for a few hours and/or many ALT+Tab's have been performed (or possibly if leaving the game open in the background without returning for extended period).
You'd never notice in a normal development environment, where you don't really have the time to QA for stuff like this.
If it doesn't seem to help, please let us know your PC specs such as CPU, GPU, OS, and graphics driver version.
Thank you.
OS:
Windows 10 (x64, free upgrade from Win8 years ago)
CPU:
Intel i5-4430 @ 3.0 GHz (quad core)
GPU:
Radeon HD 7570 1 GB (Dell proprietary)
GPU Driver:
Legacy support / Dell proprietary