diff --git a/vrp-core/src/construction/features/fast_service.rs b/vrp-core/src/construction/features/fast_service.rs
index 6a46199a7..8c951de75 100644
--- a/vrp-core/src/construction/features/fast_service.rs
+++ b/vrp-core/src/construction/features/fast_service.rs
@@ -248,9 +248,8 @@ impl FeatureState for FastServiceState {
             })
             .collect();
 
-        if !multi_job_ranges.is_empty() {
-            route_ctx.state_mut().put_route_state(self.state_keys[0], multi_job_ranges);
-        }
+        // NOTE: always override existing state to avoid stale information about multi-jobs
+        route_ctx.state_mut().put_route_state(self.state_keys[0], multi_job_ranges);
     }
 
     fn accept_solution_state(&self, solution_ctx: &mut SolutionContext) {
diff --git a/vrp-core/src/models/problem/jobs.rs b/vrp-core/src/models/problem/jobs.rs
index f83511724..403a708d7 100644
--- a/vrp-core/src/models/problem/jobs.rs
+++ b/vrp-core/src/models/problem/jobs.rs
@@ -266,10 +266,9 @@ impl Jobs {
 impl PartialEq<Job> for Job {
     fn eq(&self, other: &Job) -> bool {
         match (&self, other) {
-            (Job::Single(_), Job::Multi(_)) => false,
-            (Job::Multi(_), Job::Single(_)) => false,
-            (Job::Single(lhs), Job::Single(rhs)) => std::ptr::eq(lhs.as_ref(), rhs.as_ref()),
-            (Job::Multi(lhs), Job::Multi(rhs)) => std::ptr::eq(lhs.as_ref(), rhs.as_ref()),
+            (Job::Single(_), Job::Multi(_)) | (Job::Multi(_), Job::Single(_)) => false,
+            (Job::Single(lhs), Job::Single(rhs)) => Arc::ptr_eq(lhs, rhs),
+            (Job::Multi(lhs), Job::Multi(rhs)) => Arc::ptr_eq(lhs, rhs),
         }
     }
 }
@@ -280,12 +279,10 @@ impl Hash for Job {
     fn hash<H: Hasher>(&self, state: &mut H) {
         match self {
             Job::Single(single) => {
-                let address = single.as_ref() as *const Single;
-                address.hash(state);
+                Arc::as_ptr(single).hash(state);
             }
             Job::Multi(multi) => {
-                let address = multi.as_ref() as *const Multi;
-                address.hash(state);
+                Arc::as_ptr(multi).hash(state);
             }
         }
     }
diff --git a/vrp-core/src/models/solution/route.rs b/vrp-core/src/models/solution/route.rs
index 2721c3c36..9a537d7f2 100644
--- a/vrp-core/src/models/solution/route.rs
+++ b/vrp-core/src/models/solution/route.rs
@@ -1,7 +1,7 @@
 use crate::models::common::{Distance, Duration, Location, Schedule, TimeWindow};
 use crate::models::problem::{Actor, Job, Multi, Single};
 use crate::models::solution::Tour;
-use crate::utils::{compare_shared, short_type_name};
+use crate::utils::short_type_name;
 use rosomaxa::prelude::compare_floats;
 use std::cmp::Ordering;
 use std::fmt::{Debug, Formatter};
@@ -113,14 +113,7 @@ impl Activity {
 
     /// Checks whether activity has given job.
     pub fn has_same_job(&self, job: &Job) -> bool {
-        match self.retrieve_job() {
-            Some(j) => match (&j, job) {
-                (Job::Multi(lhs), Job::Multi(rhs)) => compare_shared(lhs, rhs),
-                (Job::Single(lhs), Job::Single(rhs)) => compare_shared(lhs, rhs),
-                _ => false,
-            },
-            _ => false,
-        }
+        self.retrieve_job().as_ref().map_or(false, |other| other == job)
     }
 
     /// Returns job if activity has it.
diff --git a/vrp-core/src/utils/comparison.rs b/vrp-core/src/utils/comparison.rs
deleted file mode 100644
index 183c5b430..000000000
--- a/vrp-core/src/utils/comparison.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-/// Various helpers
-use std::sync::Arc;
-
-/// Compares pointers from shared objects.
-pub fn compare_shared<T: ?Sized>(left: &Arc<T>, right: &Arc<T>) -> bool {
-    let left: *const T = left.as_ref();
-    let right: *const T = right.as_ref();
-    left == right
-}
diff --git a/vrp-core/src/utils/mod.rs b/vrp-core/src/utils/mod.rs
index f161a0ff9..a4ee0d922 100644
--- a/vrp-core/src/utils/mod.rs
+++ b/vrp-core/src/utils/mod.rs
@@ -3,8 +3,5 @@
 // Reimport rosomaxa utils
 pub use rosomaxa::utils::*;
 
-mod comparison;
-pub use self::comparison::*;
-
 mod types;
 pub use self::types::Either;