diff --git a/VERSION b/VERSION
index e373cc4726352f98e0eb6778c8d820464aaf4cae..511f5bac1eaf6d222d50f1fe3595050627ad5d00 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.0.98
+4.0.99
diff --git a/autosubmit/job/job.py b/autosubmit/job/job.py
index 75ba6ddcbe3b24f94cc89c44a5f1a6b09bfc82bf..43f6b72450b77bceeac0b60f7f914e772845367a 100644
--- a/autosubmit/job/job.py
+++ b/autosubmit/job/job.py
@@ -1847,10 +1847,15 @@ class Job(object):
         parameters = self.parameters
         template_content,additional_templates = self.update_content(as_conf)
         #enumerate and get value
-
+        #TODO regresion test
         for additional_file, additional_template_content in zip(self.additional_files, additional_templates):
             for key, value in parameters.items():
-                additional_template_content = re.sub('%(?<!%%)' + key + '%(?!%%)', str(parameters[key]), additional_template_content,flags=re.I)
+                final_sub = str(value)
+                if "\\" in final_sub:
+                    final_sub = re.escape(final_sub)
+                # Check if key is in the additional template
+                if "%(?<!%%)" + key + "%(?!%%)" in additional_template_content:
+                    additional_template_content = re.sub('%(?<!%%)' + key + '%(?!%%)', final_sub, additional_template_content,flags=re.I)
             for variable in self.undefined_variables:
                 additional_template_content = re.sub('%(?<!%%)' + variable + '%(?!%%)', '', additional_template_content,flags=re.I)
 
diff --git a/autosubmit/platforms/platform.py b/autosubmit/platforms/platform.py
index 95fea2bcda04e3993c69f3936503dc22b5f3431e..10d7e10515da7b36444b5a814e5b6f7ef0015ca3 100644
--- a/autosubmit/platforms/platform.py
+++ b/autosubmit/platforms/platform.py
@@ -310,9 +310,8 @@ class Platform(object):
                         raise
                     except Exception as e:
                         self.connected = False
-                        raise AutosubmitError(
-                            "{0} submission failed. May be related to running a job with check=on_submission and another that affect this job template".format(
-                                self.name), 6015, str(e))
+                        message = f'Error in platform {self.name} for section {package.jobs[0].section}: {str(e)}'
+                        raise AutosubmitError(message, 6015)
             except AutosubmitCritical as e:
                 raise AutosubmitCritical(e.message, e.code, e.trace)
             except AutosubmitError as e:
diff --git a/requeriments.txt b/requeriments.txt
index 77c7bf34501240abf7681f6871812854804761fe..937b6a284547ff4379e82825aa31d87a0724daa3 100644
--- a/requeriments.txt
+++ b/requeriments.txt
@@ -1,6 +1,6 @@
 setuptools>=60.8.2
 cython
-autosubmitconfigparser==1.0.49
+autosubmitconfigparser==1.0.50
 paramiko>=2.9.2
 bcrypt>=3.2
 PyNaCl>=1.5.0