diff --git a/src/encounter/encounter_check.f90 b/src/encounter/encounter_check.f90
index e340729a3..551a4671c 100644
--- a/src/encounter/encounter_check.f90
+++ b/src/encounter/encounter_check.f90
@@ -289,6 +289,12 @@ subroutine encounter_check_reduce_broadphase(n, nenc, index1, index2, lencounter
       logical, dimension(:), allocatable :: ltmp
 
       nenc = count(lencounter(:)) ! Count the true number of encounters
+      if (nenc == 0) then
+         if (allocated(index1)) deallocate(index1)
+         if (allocated(index2)) deallocate(index2)
+         if (allocated(lvdotr)) deallocate(lvdotr)
+         return
+      end if
 
       allocate(itmp(nenc))
       itmp(:) = pack(index1(:), lencounter(:))
diff --git a/src/netcdf/netcdf.f90 b/src/netcdf/netcdf.f90
index 27eab5f33..a4ee55c8c 100644
--- a/src/netcdf/netcdf.f90
+++ b/src/netcdf/netcdf.f90
@@ -68,11 +68,11 @@ module function netcdf_get_old_t_final_system(self, param) result(old_t_final)
       real(DP), dimension(1)                    :: val
       real(DP) :: KE_orb_orig, KE_spin_orig, PE_orig, Ltmp
 
-      call param%nciu%open(param)
+      call param%nciu%open(param, readonly=.true.)
       call check( nf90_inquire_dimension(param%nciu%ncid, param%nciu%time_dimid, len=itmax) )
       call check( nf90_inquire_dimension(param%nciu%ncid, param%nciu%id_dimid, len=idmax) )
       allocate(vals(idmax))
-      call check( nf90_get_var(param%nciu%ncid, param%nciu%time_varid, val, start=[itmax], count=[1]) )
+      call check( nf90_get_var(param%nciu%ncid, param%nciu%time_varid, val, start=[1], count=[1]) )
 
       old_t_final = val(1)
 
@@ -110,6 +110,7 @@ module function netcdf_get_old_t_final_system(self, param) result(old_t_final)
       end if
 
       deallocate(vals)
+      call param%nciu%close()
       
       return
    end function netcdf_get_old_t_final_system
@@ -350,7 +351,7 @@ module subroutine netcdf_open(self, param, readonly)
          if (readonly) mode = NF90_NOWRITE
       end if
 
-      call check( nf90_open(param%outfile, NF90_WRITE, self%ncid) )
+      call check( nf90_open(param%outfile, mode, self%ncid) )
 
       call check( nf90_inq_dimid(self%ncid, TIME_DIMNAME, self%time_dimid) )
       call check( nf90_inq_dimid(self%ncid, ID_DIMNAME, self%id_dimid) )