something (or rather a combination of two sections) in this section of the .htaccess file is preventing the thumbnails in /cache/jw_sigpro from being created and viewed

any ideas - I think it came with akeeba admin tools



## Allow limited access for certain directories with client-accessible content
RewriteRule ^(components|modules|templates|images|plugins|media|libraries|media/jui/fonts)/.*\.(jpe|jpg|jpeg|jp2|jpe2|png|gif|bmp|css|js|swf|html|mpg|mp3|mpeg|mp4|avi|wav|ogg|ogv|xls|xlsx|doc|docx|ppt|pptx|zip|rar|pdf|xps|txt|7z|svg|odt|ods|odp|flv|mov|ico|htm|ttf|woff|woff2|eot|JPG|JPEG|PNG|GIF|CSS|JS|TTF|WOFF|WOFF2|EOT)$ - [L]
RewriteRule ^(components|modules|templates|images|plugins|media|libraries|media/jui/fonts)/ - [F]

## Disallow front-end access for certain Joomla! system directories (unless access to their files is allowed above)
RewriteRule ^includes/js/ - [L]
RewriteRule ^(cache|includes|language|logs|log|tmp)/ - [F]
RewriteRule ^(configuration\.php|CONTRIBUTING\.md|htaccess\.txt|joomla\.xml|LICENSE\.txt|phpunit\.xml|README\.txt|web\.config\.txt) - [F]


## Explicitly allow access to the site's index.php main entry point file
RewriteRule ^index.php(/.*){0,1}$ - [L]
## Explicitly allow access to the site's robots.txt file
RewriteRule ^robots.txt$ - [L]


## Disallow access to all other PHP files throughout the site, unless they are explicitly allowed
RewriteCond %{REQUEST_FILENAME} (\.php)$
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule (.*\.php)$ - [F]


## Disallow access to htaccess.txt, php.ini, .user.ini and configuration.php-dist
RewriteRule ^(htaccess\.txt|configuration\.php-dist|php\.ini|\.user\.ini)$ - [F]
# Disallow access to all other front-end folders
RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{REQUEST_URI} !^/
RewriteRule .* - [F]

# Disallow access to all other front-end files
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule !^index.php$ - [F]

there is something in the joomla .htaccess file affecting it

it is two parts of this in combination - any ideas?

## Allow limited access for certain directories with client-accessible content
RewriteRule ^(components|modules|templates|images|plugins|media|libraries|media/jui/fonts)/.*\.(jpe|jpg|jpeg|jp2|jpe2|png|gif|bmp|css|js|swf|html|mpg|mp3|mpeg|mp4|avi|wav|ogg|ogv|xls|xlsx|doc|docx|ppt|pptx|zip|rar|pdf|xps|txt|7z|svg|odt|ods|odp|flv|mov|ico|htm|ttf|woff|woff2|eot|JPG|JPEG|PNG|GIF|CSS|JS|TTF|WOFF|WOFF2|EOT)$ - [L]
RewriteRule ^(components|modules|templates|images|plugins|media|libraries|media/jui/fonts)/ - [F]

## Disallow front-end access for certain Joomla! system directories (unless access to their files is allowed above)
RewriteRule ^includes/js/ - [L]
RewriteRule ^(cache|includes|language|logs|log|tmp)/ - [F]
RewriteRule ^(configuration\.php|CONTRIBUTING\.md|htaccess\.txt|joomla\.xml|LICENSE\.txt|phpunit\.xml|README\.txt|web\.config\.txt) - [F]


## Explicitly allow access to the site's index.php main entry point file
RewriteRule ^index.php(/.*){0,1}$ - [L]
## Explicitly allow access to the site's robots.txt file
RewriteRule ^robots.txt$ - [L]


## Disallow access to all other PHP files throughout the site, unless they are explicitly allowed
RewriteCond %{REQUEST_FILENAME} (\.php)$
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule (.*\.php)$ - [F]


## Disallow access to htaccess.txt, php.ini, .user.ini and configuration.php-dist
RewriteRule ^(htaccess\.txt|configuration\.php-dist|php\.ini|\.user\.ini)$ - [F]
# Disallow access to all other front-end folders
RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{REQUEST_URI} !^/
RewriteRule .* - [F]

# Disallow access to all other front-end files
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule !^index.php$ - [F]