Custom Resolution Utility (CRU)

[edoroom]

Hi,
Hope someone can help me,
First of all much thanks for the developer/s of that tool,
I have the ASUS MG279Q which most of the users of it recommand to use CRU for modify the default freesync range from 35-90 to something that would go till 144 like 57-144..
My problem is pretty weird,At first I was sure it's coming from the GPU probably something wrong there till I discovered that all this crash are coming after I used CRU to modify my freesync range..
Question is why I have these issues when most of the owners of the MG279Q using CRU without single issue..
I mean,The tool works perfect.. I can open let's say AC Odessy and while benchmark when the FPS is around 50 I can see the freesync really working and the FPS changing in the monitor OSD..
But..Why after 20 minutes..Or even hour (It's in random time..) The PC crash?
I mean..Monitor crash like here - https://youtu.be/YLg8N9f_o9M?t=171 (Video I captured when I was sure it's coming from the GPU but its from the freesync change..)
It's like the monitor is freezing (I can still hear for example the music of the game but screen froze..) Let's say I shutdown the PC..The monitor would still show the frozen image like it's still getting signal even that the PC is shutdown ;/
Any idea?
The GPU is Vega 64,The connection is with Mini DP which was included with the ASUS MG279Q..