The entities on the same line as the USE, ONLY statement were not hyper linked in the code view, following items were.

Example:
========
mod1.f:
      MODULE mod1
!> \addtogroup mod1_grp desc
!> \{
!> \name mod desc
!> \{

      INTEGER, PARAMETER :: var2 = 2
      CHARACTER(len=4), PARAMETER    :: var1 = "1"
!> \}
!> \}
      END MODULE

mod2.f90:
   MODULE mod2

     USE mod1,  ONLY : var2    &
                         , var2    &
                         , var1
   END MODULE

of mod2.f90 in the code the first var2 was not hyper linked whilst the second var2 and var1 were hyper linked (used here twice var2 for the demonstration purpose only)