Continuous build up of cache in com_virtuemart_orderby_manus

[seabass]

php8.1
Joomla 4.3.3
VM 4.0.12

Hi Support,
There is a continuous (every minute) cache build up in public_html/cache/com_virtuemart_orderby_manus and its growing to a huge level.
Joomla System Cache = off
The only VM module i have published is the Search Module
I am using manufacturers in VM
I cant see any cache settings to disable, so i have had to write a cronjob
find /home/xxxx/public_html/cache/com_virtuemart_orderby_manus -name "*.php" -type f -exec rm -f {} \;
How can this cache be disabled?
Thanks