Bug? Class modules disappear from IDE view

[avalle]

I'm developing a REST API project containing 14 class modules.
All modules are added to the project.
The project is saved and closed.

When I reopen the project i can only see 11 or 12 modules instead of 14.
The missing modules are still linked (e.g. if I compile the project it works as expected and all modules are included) but they are no more visible from the bar above the code view.

Looks like a bug to me, unless I'm missing something non obvious.

Thanks
Andrea

 

[Erel]

This is not a bug. All modules are there and can be reached from the modules tree or with the subs search (Ctrl + E).

There is no need to open all modules. It just hurts performance. The IDE opens up to 10 modules when a project is loaded.