The rule '@@||ad.co.kr^$ghide' is not being applied from custom filter

[hooray804]

Please answer the following questions for yourself before submitting an issue

• Filters were updated before reproducing an issue
• I checked the knowledge base and found no answer
• I checked to make sure that this issue has not already been filed

AdGuard version

4.5.20

Environment

• OS: iOS 26.4.2
• Device: iPhone

Ad Blocking

AdGuard Mobile Ads filter, AdGuard Base filter

Privacy

No response

Social

No response

Annoyances

AdGuard Annoyances filter

Security

No response

Other

No response

Language-specific

List-KR

Advanced protection for Safari

• yes, I do

Which DNS server do you use?

DNS protection disabled

DNS protocol

DNS protection disabled

Custom DNS

No response

DNS filtering

• yes, I do

Custom DNS filter

No response

DNS implementation

DNS protection disabled

Tunnel mode

DNS protection disabled

Low-level settings

Bootstrap server:
Fallback server:
Blocking mode, etc:

Issue Details

Steps to reproduce:

1. Add custom filter list URL https://raw.githubusercontent.com/hooray804/adguard-gallery-filter/refs/heads/main/filter.txt that has a rule below
   @@||ad.co.kr^$ghide
2. It doesn’t work if I visit https://m.ad.co.kr

Expected Behavior

No response

Actual Behavior

Actually if I add in User Rules section, it works. So it should work in custom filter list too.

Screenshots

Screenshot 1

Additional Information

No response

[hooray804]

1. When it doesn’t work

2. When it works

[Swen90]

Good day @hooray804
Thank you for your report. I was able to reproduce issue with custom filter. We will take a close look at it soon and will fix it 👍