Thanks for the reply musicullum,
I already downloaded the latest update for the VST Connect SE, but it’s for my other setup. It works on my Cubase 10 and my friend’s VST Connect Performer.
The reason I use the VST Connect SE 3 is because, my iPad is a bit old, and I can’t update to the latest version because of the iOS on my old iPad is 9, the requirements for the VST Connect 4 is iOS 11. It can’t connect to the Cubase 10 also, but works on Cubase 8.5.
However, an update today, I tried a couple times to connect. Out of some trials, there’s actualy one time that it can be sync, I did some test recording using the built in mic on my iPad, and it was perfectly recorded with no dropout.
Have no clue what I did to make it sync, after that, the next connection was back to the red LED.