SSTATE_MIRRORS not working as expected

Hi, all

I’ve set up my build environment to use RidgeRun's sstate-cache and downloads mirrors as follows:

```
# RidgeRun's SState-Cache Mirror
SSTATE_MIRRORS ?= "\
file://.* https://yocto.ridgerun.ai/mirror/scarthgap/sstate-cache/PATH;downloadfilename=PATH \
"

# RidgeRun's Downloads Mirror
PREMIRRORS:prepend = "\
git://.*/.* https://yocto.ridgerun.ai/mirror/scarthgap/downloads/ \
"
```

However, I’m not seeing a significant improvement when using these mirrors.
It seems that native packages are *not being fetched from the cache or the downloads mirror* —only a few packages appear to be reused.

Has anyone else experienced this?
Are there specific configurations or steps needed to ensure that native packages are properly retrieved from the mirrors?

*Additional info:*

* 

Yocto release: Scarthgap

Any guidance or suggestions would be greatly appreciated!