SockFilter Unable to filter localhost

### Please answer the following questions for yourself before submitting an issue

- [x] Filters were updated before reproducing an issue
- [x] I checked the [knowledge base](https://adguard.com/kb/) and found no answer
- [x] I checked to make sure that this issue has not already been filed

### AdGuard version

8.0.5542

### Browser version

firefox

### OS version

26200.8973

### Traffic filtering

- [x] yes, I do

### Ad Blocking

_No response_

### Privacy

_No response_

### Social

_No response_

### Annoyances

_No response_

### Security

_No response_

### Other

_No response_

### Language-specific

_No response_

### Which DNS server do you use?

DNS protection disabled

### DNS protocol

None

### Custom DNS

_No response_

### What Stealth Mode options do you have enabled?

_No response_

### Support ticket ID

_No response_

### Issue Details

Disable the "Filter unknown applications" option, then tap the top-right corner to reset to default settings.

If the VPN traffic process is not selected, ads cannot be blocked.
Switching back to WFP restores normal functionality.

### Expected Behavior

_No response_

### Actual Behavior

If the process is not selected in Sockfilter, VPN traffic cannot be filtered.

### Screenshots

Screenshot 1

### Additional Information

_No response_