diff --git a/platform-darwin/Scripts/bashlib b/platform-darwin/Scripts/bashlib
index 9116cc46..964b49f2 100644
--- a/platform-darwin/Scripts/bashlib
+++ b/platform-darwin/Scripts/bashlib
@@ -699,7 +699,7 @@ log() {
         ;;
 
         stopProgress)
-            kill -0 "$_logSpinner" 2>/dev/null || return
+            ! kill -0 "$_logSpinner" 2>/dev/null && return
 
             case $exitcode in
                 0)  printf -v logMsg "done${format:+ ($format)}.\n" "${args[@]}"
diff --git a/platform-darwin/Scripts/genassets b/platform-darwin/Scripts/genassets
index 06013252..41fd4744 100755
--- a/platform-darwin/Scripts/genassets
+++ b/platform-darwin/Scripts/genassets
@@ -70,12 +70,12 @@ set -e
             done <<< "$niftyNinePatch"
         fnip
     else
-        echo >&2 'pinf'
         pinf '%s -> %s' "${src##*/}" "${dst##*/}"
-        echo >&2 'cp <$src> <$dst>'
+        echo >&2 "pinf: $?"
             cp "$src" "$dst"
-        echo >&2 'fnip'
+        echo >&2 "cp <$src> <$dst>: $?"
         fnip
+        echo >&2 "fnip: $?"
     fi
 }