OLS 1.5 rewrites doesn't work in depth path

#1
After upgrading from ols 1.4 to ols 1.5 I found that rewrites in depth aren't recognized
Code:
RewriteRule ^design/imagini/parts-([a-zA-Z0-9\-]+)-([0-9]+)-([0-9]+)-auto-parts\.([a-z0-9]+)$ design/imagini/piesa.php?idgrd=$2&idart=$3&ext=$4
if path starts with ^parts-([a-zA-Z0-9\-]+)-([0-9]+)-([0-9]+)-auto-parts\.([a-z0-9]+)$ is recognized.
Same code on ols 1.4 works.
 
#3
Can you give me more info about the rewrite rule?
Such as is it in .htaccess and which version of 1.4 and which version of 1.5.
We fixed a rewrite rule bug in 1.4.40 which should still be in 1.5rc version.
 
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