One day I decided to try out visual scripting in unity (Bolt), everything was fine until I needed to add a variable. When I tried to select a type I didn’t see integer, float, string, character or boolean on the menu, I tried searching but it didn’t find anything. I attached the screenshot, you will see how it looks. I think everything else was there but I’m not sure. I don’t know if this is the right place to ask about this, but I have no idea where else to ask.
I got a similar problem. I added a new type option using the wizard, but after generating the units are missing from the menu. 
@fullangelverde, @ogigenije
Could you provide your Unity version, Bolt version and operating system?
@fullangelverde, @ogigenije
Could you provide your Unity version, Bolt version and operating system?
same thing, were you able to resolve this?