diff --git a/CHANGELOG.md b/CHANGELOG.md
index 431606a0..58d85ccd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,13 @@ change warranting a new major release:
 
 # [unreleased]
 
+# [v1.27.1] 2023-02-13
+
+## Fixed
+
+- Fix for SPI ComIF: Set transfer size to 0 for failed transfers
+- Fix shadowing issue with locks in MAX31865 low level handler
+
 # [v1.27.0] 2023-02-13
 
 eive-tmtc: v2.12.5
diff --git a/fsfw b/fsfw
index dac2d210..f0b8457b 160000
--- a/fsfw
+++ b/fsfw
@@ -1 +1 @@
-Subproject commit dac2d210b597adfaf45bd5ae6a4c027599927601
+Subproject commit f0b8457ba2d9a34a42b10314c3cdccfd46ebf168
diff --git a/linux/devices/Max31865RtdLowlevelHandler.cpp b/linux/devices/Max31865RtdLowlevelHandler.cpp
index a6fe2061..52a107dc 100644
--- a/linux/devices/Max31865RtdLowlevelHandler.cpp
+++ b/linux/devices/Max31865RtdLowlevelHandler.cpp
@@ -70,8 +70,8 @@ bool Max31865RtdReader::periodicInitHandling() {
       return false;
     }
     if ((rtd->on or rtd->db.active) and not rtd->db.configured and rtd->cd.hasTimedOut()) {
-      ManualCsLockWrapper mg(csLock, gpioIF, rtd->spiCookie, csTimeoutType, csTimeoutMs);
-      if (mg.lockResult != returnvalue::OK or mg.gpioResult != returnvalue::OK) {
+      ManualCsLockWrapper mg1(csLock, gpioIF, rtd->spiCookie, csTimeoutType, csTimeoutMs);
+      if (mg1.lockResult != returnvalue::OK or mg1.gpioResult != returnvalue::OK) {
         sif::error << "Max31865RtdReader::periodicInitHandling: Manual CS lock failed" << std::endl;
         continue;
       }
@@ -153,8 +153,8 @@ ReturnValue_t Max31865RtdReader::periodicReadHandling() {
       return returnvalue::FAILED;
     }
     if (rtdIsActive(rtd->idx)) {
-      ManualCsLockWrapper mg(csLock, gpioIF, rtd->spiCookie, csTimeoutType, csTimeoutMs);
-      if (mg.lockResult != returnvalue::OK or mg.gpioResult != returnvalue::OK) {
+      ManualCsLockWrapper mg1(csLock, gpioIF, rtd->spiCookie, csTimeoutType, csTimeoutMs);
+      if (mg1.lockResult != returnvalue::OK or mg1.gpioResult != returnvalue::OK) {
         sif::error << "Max31865RtdReader::periodicInitHandling: Manual CS lock failed" << std::endl;
         continue;
       }