diff --git a/signoff/caravel_fix b/signoff/caravel_fix
index 52d6410..e69de29 100644
--- a/signoff/caravel_fix
+++ b/signoff/caravel_fix
@@ -1 +0,0 @@
-2d4e030f63d1966d19ad31f92b8058ab9874cf1d  ./gds/caravel_00010005_b.gds
diff --git a/signoff/run_metal_fix.out b/signoff/run_metal_fix.out
index 96a6630..60e4df3 100644
--- a/signoff/run_metal_fix.out
+++ b/signoff/run_metal_fix.out
@@ -1,65 +1,11 @@
 Finding the prefix used for caravel subcells in the user GDS.
 User prefix is rS_
 Replacing cell caravel in the user GDS file.
-Reading GDS file for alternate cell caravel
-Cell caravel found at position 235669746
-Cell caravel ends at position 247680056
-Reading GDS file for original source ./gds/caravel_00010005.gds
-Cell caravel found at position 3202843706
-Cell caravel ends at position 3214853558
-Cell caravel checksum is 12009824
-Info:  Structure caravel matches checksum 12009824
-Info:  Structure caravel at 3202843706 to 3214853558 will be replaced by alternate data.
+/mnt/share/open_mpw/sak/run_metal_fix.sh: line 46:  3523 Terminated              ${PDK_ROOT}/bin/change_gds_cell.py caravel ${caravel_fixed} ${user_orig} ${user_fixed} -checksum=$4
 Prefixing caravel subcells in the user GDS
 Running:  /usr/share/pdk/bin/change_gds_string.py user_id_textblock rS_user_id_textblock copyright_block rS_copyright_block open_source rS_open_source storage rS_storage sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped rS_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped user_id_programming rS_user_id_programming simple_por rS_simple_por gpio_control_block rS_gpio_control_block mgmt_core rS_mgmt_core mgmt_protect rS_mgmt_protect chip_io rS_chip_io user_project_wrapper rS_user_project_wrapper ./gds/caravel_00010005_b.gds -debug -verbatim
-Original data length = 3214854280
-Replaced b'open_source\x00' with b'rS_open_source'
-Replaced b'user_id_textblock\x00' with b'rS_user_id_textblock'
-Replaced b'copyright_block\x00' with b'rS_copyright_block'
-Replaced b'storage\x00' with b'rS_storage'
-Replaced b'sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped' with b'rS_sky130_fd_sc_hvl__lsbufhv2lv_1_wrapped\x00'
-Replaced b'user_id_programming\x00' with b'rS_user_id_programming'
-Replaced b'simple_por' with b'rS_simple_por\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'mgmt_core\x00' with b'rS_mgmt_core'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'mgmt_protect' with b'rS_mgmt_protect\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'gpio_control_block' with b'rS_gpio_control_block\x00'
-Replaced b'chip_io\x00' with b'rS_chip_io'
-Replaced b'user_project_wrapper' with b'rS_user_project_wrapper\x00'
+Traceback (most recent call last):
+  File "/usr/share/pdk/bin/change_gds_string.py", line 72, in <module>
+    with open(source, 'rb') as ifile:
+FileNotFoundError: [Errno 2] No such file or directory: './gds/caravel_00010005_b.gds'
 Finished.