I have found the cause of this problem (the one that I have described in edit part of previous post), and it isn’t related to Engine as I was previously thinking (sorry for that). I was just tricked into thinking there might be something going on with Engine, but it was all related just to placing Video Device In TOP in project…
If I add Video Device In TOP to a project with higher GPU utilization, it somehow tanks whole GPU (making it run at 100% load). Deleting the TOP won’t help - the only way to get rid of this side effect is to restart the project. I feel like it is related to DirectShow (the default library choice when adding Video Device In TOP). I am super happy to find this, as now I can sleep well (knowing that my project won’t start lagging in production)
Nevertheless, I thought you might be interested in this behavior, so I have recorded a demo video which you can download here:
EDIT, Michel: The original issue was discussed in the following thread and had to do with some mouse lag that seems unrelated to this secondary issue.
I will test these scenarios, but it will take me a bit more time. If it wouldn’t be a problem for you, I would postpone this until get past the deadline I am approaching right now (I have a show coming up this month, but once it is done, I will get back to this). Would that be ok? Thanks.
I am sorry about the delay - it took me a while to get back to this.
However, I have just realized that delay was actually a good thing as I have tested this now and the problem is gone.
I recall I gave it a quick look back when 2022.31030 came out and the problem was there, but now it works like a charm. Since I haven’t done any modifications to my system except some Windows updates, I am guessing there really was something bad happening on Directshow side and the updates fixed it.
This was sort of like a forgotten Christmas gift. I am marking this fixed.