diff --git a/.integrated_tests.yaml b/.integrated_tests.yaml
index 7cf1a5ce23b..94ec9a64586 100644
--- a/.integrated_tests.yaml
+++ b/.integrated_tests.yaml
@@ -1,6 +1,6 @@
 baselines:
   bucket: geosx
-  baseline: integratedTests/baseline_integratedTests-pr3972-17154-316e6d8
+  baseline: integratedTests/baseline_integratedTests-pr4088-17188-4247846
 
 allow_fail:
   all: ''
diff --git a/BASELINE_NOTES.md b/BASELINE_NOTES.md
index cf9dbd6c1a2..b833684e8de 100644
--- a/BASELINE_NOTES.md
+++ b/BASELINE_NOTES.md
@@ -5,6 +5,9 @@ This file is designed to track changes to the integrated test baselines.
 Any developer who updates the baseline ID in the .integrated_tests.yaml file is expected to create an entry in this file with the pull request number, date, and their justification for rebaselining.
 These notes should be in reverse-chronological order, and use the following time format: (YYYY-MM-DD).
 
+PR #4088 (2026-07-27) <https://storage.googleapis.com/geosx/integratedTests/baseline_integratedTests-pr4088-17188-4247846.tar.gz>
+Fluid reset after convergence failure
+
 PR #3972 (2026-07-28) <https://storage.googleapis.com/geosx/integratedTests/baseline_integratedTests-pr3972-17154-316e6d8.tar.gz>
 Well model refactor .  Integrated test update due to schema changes 
 
diff --git a/src/coreComponents/physicsSolvers/fluidFlow/CompositionalMultiphaseBase.cpp b/src/coreComponents/physicsSolvers/fluidFlow/CompositionalMultiphaseBase.cpp
index 93c17c765ec..03ec8ffe48a 100644
--- a/src/coreComponents/physicsSolvers/fluidFlow/CompositionalMultiphaseBase.cpp
+++ b/src/coreComponents/physicsSolvers/fluidFlow/CompositionalMultiphaseBase.cpp
@@ -2790,6 +2790,14 @@ void CompositionalMultiphaseBase::resetStateToBeginningOfStep( DomainPartition &
 
       // update porosity, permeability
       updatePorosityAndPermeability( subRegion );
+      // discard any warm-started state held by the fluid model (e.g. K-values
+      // used to seed the flash) so the rolled-back step does not inherit
+      // iterate-dependent state from the failed Newton attempt.
+      {
+        string const & fluidName = subRegion.template getReference< string >( viewKeyStruct::fluidNamesString() );
+        MultiFluidBase const & fluid = getConstitutiveModel< MultiFluidBase >( subRegion, fluidName );
+        fluid.initializeState();
+      }
       // update all fluid properties
       updateFluidState( subRegion );
       // for thermal simulations, update solid internal energy