Intermittent Stuttering

Hello Everyone.

Recenty i’ve noticed that every project that i have, (even the default templates) freezes after like 10 seconds from the “play in editor”,there is no fps drop but the in-game freeze is noticeable for a second.

i’m using 4.12.2 compiled from release branch,also binary 4.11 has this problem.

Also tried on different machine and also they have this problem.

Is there anyone with this issue?What could it be?

Thanks everyone.