Hi there! I had an issue with opening FL Studio on startup (I have set my own template) or projects. It turns out that my YOULEAN plugin FLP file was missing from all VST folders (I always have it on the master channel) , and I had a good two hours of headache

So I just want to share with you guys that if there is a problem, it will have a solution too

Don't panic; just check the obvious first.