simple Apache RewriteCond and RewriteRule issue - apache

Question

I'm trying to follow https://github.com/crwilliams/diary-user-interface/wiki/cachebusting
If I set my HTML code to:
href="/myDir/myFile.2013103000.html"
and add to .htaccess:
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)\.(\d+)\.(html)$ $1.$3 [L]
</IfModule>
I see "Page not found" error as the browser goes to: https://www.mycompany.com/myDir/myFile.2013103000.html
Any idea what could be happening?
What can I do to trouble shoot?
Sitting at the webpage with the link, if I change .htaccess to this:
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteRule ^(.+) https://www.mycompany.com/myDir/myFile.html [L]
</IfModule>
and then click the link it works (but obviously this just for troubleshooting).
UPDATE
Here's the complete .htaccess file in case something following the above can be identified as the problem:
# attempt to implement version control with cachebusting
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.+)\.(\d+)\.(html)$ $1.$3 [L]
</IfModule>
# Pruning irrelevant parts (Phil)
# force SSL and www
RewriteCond %{HTTP_HOST} ^mycompany\.com$ [OR]
RewriteCond %{HTTPS} !on
RewriteRule ^(.*)$ https://www.mycompany.com/$1 [R=301,L]
# Redirect index.html to a specific subfolder;
Redirect permanent /index.html https://www.mycompany.com/home/
# enable pretty url
<IfModule mod_rewrite.c>
RewriteBase /home/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME}/index.html !-f
RewriteCond %{REQUEST_FILENAME}/index.php !-f
RewriteRule . index.php [L]
</IfModule>

Answer 1

I'd remove that last block and put it in a separate .htaccess file in your /home directory, eg
# /home/.htaccess
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
# not sure about the next 3 lines though
RewriteCond %{REQUEST_FILENAME}/index.html !-f
RewriteCond %{REQUEST_FILENAME}/index.php !-f
RewriteRule . index.php [L]
</IfModule>