hey guys now a days i am facing this problem with fl studio and its very disturbing. it doesn't let a smooth playback monitoring. i don't know but when i play the song in fl it suddenly stops and master monitoring indicator turns red for permanent as when i stop the music its goes away and then when i again play after 4 5 seconds it starts. Check the screenshot i have attached with this post and please help me out.
First thing to check is your buffer length. Open up Fl Studio, look at the top left where it says file, edit, channels, ect.
Click on "Options" then click on audio settings and adjust your "Buffer Length". Do not have it all the way down or else your Fl Studio will sound horrible and could cause problems, put it a bit less than halfway, but if your computer doesn't mess up then put it all the way up.
After that, open the mixer, click on the master track and make sure that your Fl Studio did not put any effects on your master track.
When you open up Fl Studio it likes to troll and put "Fruity Limiter" on your master track which boost the volume very high without you knowing it.
So this would either cause your volumes to be way too high and start distorting your music or it will boost it too high and probably cause your computer to screw up if your volume is way to high on top of the buffer length being messed up.
I am not sure if this is what it is, its just a guess. If this doesn't work I really don't know, are you using ASIO drivers for Fl Studio instead of primary???
Go to "Options" then "Audio Settings" make sure at the top you are not using primary sound driver.