You need to check and see if the information is incomplete when it gets added to the htaccess file.
Here is what our code looks like from a default install. This goes at the top of the .htaccess file:
#WFCACHECODE – Do not remove this line. Disable Web Caching in Wordfence to remove this data.
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/css text/x-component application/x-javascript application/javascript text/javascript text/x-js text/html text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon application/json
<IfModule mod_headers.c>
Header append Vary User-Agent env=!dont-vary
</IfModule>
<IfModule mod_mime.c>
AddOutputFilter DEFLATE js css htm html xml
</IfModule>
</IfModule>
<IfModule mod_mime.c>
AddType text/html .html_gzip
AddEncoding gzip .html_gzip
AddType text/xml .xml_gzip
AddEncoding gzip .xml_gzip
</IfModule>
<IfModule mod_setenvif.c>
SetEnvIfNoCase Request_URI \.html_gzip$ no-gzip
SetEnvIfNoCase Request_URI \.xml_gzip$ no-gzip
</IfModule>
<IfModule mod_headers.c>
Header set Vary “Accept-Encoding, Cookie”
</IfModule>
<IfModule mod_rewrite.c>
#Prevents garbled chars in cached files if there is no default charset.
AddDefaultCharset utf-8
#Cache rules:
RewriteEngine On
RewriteBase /
RewriteCond %{HTTPS} on
RewriteRule .* – [E=WRDFNC_HTTPS:_https]
RewriteCond %{HTTP:Accept-Encoding} gzip
RewriteRule .* – [E=WRDFNC_ENC:_gzip]
RewriteCond %{REQUEST_METHOD} !=POST
RewriteCond %{HTTPS} off
RewriteCond %{QUERY_STRING} ^(?:\d+=\d+)?$
RewriteCond %{REQUEST_URI} (?:\/|\.html)$ [NC]
RewriteCond %{HTTP_COOKIE} !(comment_author|wp\-postpass|wf_logout|wordpress_logged_in|wptouch_switch_toggle|wpmp_switcher) [NC]
RewriteCond %{REQUEST_URI} \/*([^\/]*)\/*([^\/]*)\/*([^\/]*)\/*([^\/]*)\/*([^\/]*)(.*)$
RewriteCond “%{DOCUMENT_ROOT}/wp-content/wfcache/%{HTTP_HOST}_%1/%2~%3~%4~%5~%6_wfcache%{ENV:WRDFNC_HTTPS}.html%{ENV:WRDFNC_ENC}” -f
RewriteRule \/*([^\/]*)\/*([^\/]*)\/*([^\/]*)\/*([^\/]*)\/*([^\/]*)(.*)$ “/wp-content/wfcache/%{HTTP_HOST}_$1/$2~$3~$4~$5~$6_wfcache%{ENV:WRDFNC_HTTPS}.html%{ENV:WRDFNC_ENC}” [L]
</IfModule>
#Do not remove this line. Disable Web caching in Wordfence to remove this data – WFCACHECODE
Check and see if yours looks like this.
tim