Missing icons in nc webgui after imaginary docker installation

|NextcloudPi version|v1.52.0|
|NextcloudPi image|NextCloudPi_RaspberryPi_v1.52.0.img|
|OS|Debian GNU/Linux 11. 6.1.21-v8+ (aarch64)|
Nextcloud version
PHP 8.1.20 (cli) (built: Jun 9 2023 07:42:54) (NTS)

After installing Imaginary ( following link Speed up Nextcloud preview generation with imaginary) , the NC web gui only shows plain text, no icons/color.


However, doing a bit of troubleshooting I found that removing the two lines lines related to Imaginary from the config.php file, restart apache, the issue goes away

17 => ‘OC\Preview\Imaginary’,
‘preview_imaginary_url’ => ‘’,

Also did some googling and I believe this might be due to a caching setting? Which as far as I know are still set to the default

‘memcache.local’ => ‘\OC\Memcache\Redis’,
‘memcache.locking’ => ‘\OC\Memcache\Redis’,

Any ideas what could be causing this?

Thank you