diff --git a/wetb/prepost/Simulations.py b/wetb/prepost/Simulations.py
index 2f173c2a48a992bcd57c87ffdf8d32f8df26c9c3..60ec04125ba8d15567f6f01813fdf1cef5be1e0c 100755
--- a/wetb/prepost/Simulations.py
+++ b/wetb/prepost/Simulations.py
@@ -1999,7 +1999,7 @@ class PBS(object):
         self.exechunks = exechunks
         if exechunks is None:
             self.exechunks = "({winenumactl:} {hawc2_exe:} {fname_htc:}) "
-            self.exechunks += "|& tee {fname_pbs_out:}"
+            self.exechunks += "2>&1 tee {fname_pbs_out:}"
 
         # TODO: based on a certain host/architecture you can change these
         self.maxcpu = 1
diff --git a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp10_s100.p b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp10_s100.p
index 9a2032c0a13bb3fb73c9d10d6e7341e6b6c52146..02009212c0dba899383927625345a7ae7e95a893 100644
--- a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp10_s100.p
+++ b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp10_s100.p
@@ -68,7 +68,7 @@ if [ -z ${LAUNCH_PBS_MODE+x} ] ; then
 # find+xargs mode: 1 PBS job, multiple cases
 else
   echo "execute HAWC2, do not fork and wait"
-  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp10_s100.htc) |& tee pbs_out/dlc01_demos/dlc01_steady_wsp10_s100.err.out 
+  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp10_s100.htc) 2>&1 tee pbs_out/dlc01_demos/dlc01_steady_wsp10_s100.err.out
 fi
 # ------------------------------------------------------------------------------
 
diff --git a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp11_s101.p b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp11_s101.p
index 06a89d438312c77ef87cba4bd983f3cb46da76f5..c43695bf7c1a6fa5e7ac77f11bc72502f5d8bec0 100644
--- a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp11_s101.p
+++ b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp11_s101.p
@@ -68,7 +68,7 @@ if [ -z ${LAUNCH_PBS_MODE+x} ] ; then
 # find+xargs mode: 1 PBS job, multiple cases
 else
   echo "execute HAWC2, do not fork and wait"
-  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp11_s101.htc) |& tee pbs_out/dlc01_demos/dlc01_steady_wsp11_s101.err.out 
+  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp11_s101.htc) 2>&1 tee pbs_out/dlc01_demos/dlc01_steady_wsp11_s101.err.out
 fi
 # ------------------------------------------------------------------------------
 
diff --git a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp8_noturb.p b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp8_noturb.p
index 025c53a3ca6502a8a983147adbedd4fc5aa7a8b0..98ba42e3f17d0cc52da94b4126cf6e23f6cae0f2 100644
--- a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp8_noturb.p
+++ b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp8_noturb.p
@@ -68,7 +68,7 @@ if [ -z ${LAUNCH_PBS_MODE+x} ] ; then
 # find+xargs mode: 1 PBS job, multiple cases
 else
   echo "execute HAWC2, do not fork and wait"
-  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp8_noturb.htc) |& tee pbs_out/dlc01_demos/dlc01_steady_wsp8_noturb.err.out 
+  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp8_noturb.htc) 2>&1 tee pbs_out/dlc01_demos/dlc01_steady_wsp8_noturb.err.out
 fi
 # ------------------------------------------------------------------------------
 
diff --git a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp9_noturb.p b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp9_noturb.p
index 61aa647778e1a81c7adfd3da7581791d26308304..0ee09ab2c65c37bd1e6d298820c10020f25e7aac 100644
--- a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp9_noturb.p
+++ b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in/dlc01_demos/dlc01_steady_wsp9_noturb.p
@@ -68,7 +68,7 @@ if [ -z ${LAUNCH_PBS_MODE+x} ] ; then
 # find+xargs mode: 1 PBS job, multiple cases
 else
   echo "execute HAWC2, do not fork and wait"
-  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp9_noturb.htc) |& tee pbs_out/dlc01_demos/dlc01_steady_wsp9_noturb.err.out 
+  (time WINEARCH=win32 WINEPREFIX=~/.wine32 numactl --physcpubind=$CPU_NR wine hawc2-latest ./htc/dlc01_demos/dlc01_steady_wsp9_noturb.htc) 2>&1 tee pbs_out/dlc01_demos/dlc01_steady_wsp9_noturb.err.out
 fi
 # ------------------------------------------------------------------------------
 
diff --git a/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-gorm/remote_chnk_00000.zip b/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-gorm/remote_chnk_00000.zip
index 5ffa8ba349ca2b3fdd26061988e171d9c167e682..5f7900af82d67febaeaa909a9f72182f8fce1549 100644
Binary files a/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-gorm/remote_chnk_00000.zip and b/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-gorm/remote_chnk_00000.zip differ
diff --git a/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-jess/remote_chnk_00000.zip b/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-jess/remote_chnk_00000.zip
index 5ffa8ba349ca2b3fdd26061988e171d9c167e682..5f7900af82d67febaeaa909a9f72182f8fce1549 100644
Binary files a/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-jess/remote_chnk_00000.zip and b/wetb/prepost/tests/data/demo_dlc/ref/zip-chunks-jess/remote_chnk_00000.zip differ