Something very strange happens to me in my MT4 and it is that when they get at 11 at night my quotes stop and it makes a small gap, as if it got caught a few minutes and sometimes when making the gap it doesnt change color and my EA doesnt detect the entrance.
There are small - or for CFDs larger - pauses when trading is not possible.
You find it for your assets here https://www.darwinex.com/spreads/forex
If trading is paused, and the markets are not halted, it can always show a gap on MT4 as the MT4 data are not available for some minutes.
Welcome to the comunity,
That is something normal. Every asset has a trading timetable. You can see it in the Assets and Spreads Webpage. Just click in the open hours icon and there you can see all the information.
For example some assets may be closed one hour whilst other only a couple minutes.