This behavior is occurring most likely because parameters are not stored on the heap, and, as such, are either optimized out by the compiler or stored in such a way that they are no longer considered "variables" by the debugger (since they don't vary, after all...).

New debug safe optimizations working well.

One thing I did notice is that Fortran parameters declared locally do show their values when you select and point to them and they can be added to the watch list, but they don't show up in the list of local variables.

Not sure if this could/should be added.