diff --git a/ansible/www-standalone/tools/promote/resha_release.sh b/ansible/www-standalone/tools/promote/resha_release.sh
index 86fd92694..97325fe43 100755
--- a/ansible/www-standalone/tools/promote/resha_release.sh
+++ b/ansible/www-standalone/tools/promote/resha_release.sh
@@ -25,6 +25,11 @@ fi
 
 ${__dirname}/_resha.sh $site $dstdir $2
 
-. ${__dirname}/upload_to_cloudflare.sh $site $2
+# https://github.com/nodejs/build/issues/3508
+# Output from upload_to_cloudflare.sh must not go to stdout to prevent
+# breaking the release.sh script.
+logfile="${__dirname}/logs/cloudflare.log"
+date >> "${logfile}"
+. ${__dirname}/upload_to_cloudflare.sh $site $2 >> "${logfile}" 2>&1
 
 /home/nodejs/queue-cdn-purge.sh $site resha_release
diff --git a/ansible/www-standalone/tools/promote/upload_to_cloudflare.sh b/ansible/www-standalone/tools/promote/upload_to_cloudflare.sh
index d91438b9a..bc2add9e6 100755
--- a/ansible/www-standalone/tools/promote/upload_to_cloudflare.sh
+++ b/ansible/www-standalone/tools/promote/upload_to_cloudflare.sh
@@ -42,6 +42,10 @@ fi
 relativedir=${dstdir/$dist_rootdir/"$site/"}
 tmpversion=$2
 
-aws s3 cp $staging_bucket/$relativedir/$tmpversion/ $dist_bucket/$relativedir/$tmpversion/ --endpoint-url=$cloudflare_endpoint --profile $cloudflare_profile --recursive --no-follow-symlinks
+# Due to R2 limitations, `aws s3 cp` and `aws s3 sync` only succeed in copying
+# different sets of files across. Fortunately the sets are disjoint, so running
+# both commands (ignoring errors) will copy all the files across.
+aws s3 cp $staging_bucket/$relativedir/$tmpversion/ $dist_bucket/$relativedir/$tmpversion/ --endpoint-url=$cloudflare_endpoint --profile $cloudflare_profile --recursive --no-follow-symlinks --copy-props none || true
+aws s3 sync $staging_bucket/$relativedir/$tmpversion/ $dist_bucket/$relativedir/$tmpversion/ --endpoint-url=$cloudflare_endpoint --profile $cloudflare_profile --no-follow-symlinks || true
 aws s3 cp $staging_bucket/$relativedir/index.json $dist_bucket/$relativedir/index.json --endpoint-url=$cloudflare_endpoint --profile $cloudflare_profile
 aws s3 cp $staging_bucket/$relativedir/index.tab $dist_bucket/$relativedir/index.tab --endpoint-url=$cloudflare_endpoint --profile $cloudflare_profile