custom search URL modified by Catsxp (wrong)

[redfox]

I'd like to add the "&udm=14" parameter to Google search (use Web search, i.e.disable AI)...

So, I created a custom search engine, set it to default, with the search URL
{google:baseURL}search?q=%s&udm=14&{google:RLZ}{google:originalQueryForSuggestion}{google:assistedQueryStats}{google:searchFieldtrialParameter}{google:language}{google:prefetchSource}{google:searchClient}{google:sourceId}{google:contextualSearchVersion}ie={inputEncoding}.

It worked until browser restart. After that, Catsxp modified the URL by itself to
{google:baseURL}search?udm=14?q=%s&{google:RLZ}{google:originalQueryForSuggestion}{google:assistedQueryStats}{google:searchFieldtrialParameter}{google:language}{google:prefetchSource}{google:searchClient}{google:sourceId}{google:contextualSearchVersion}ie={inputEncoding}

It does not work, the parameter shall be &udm=14, not ?udm=14.
How to disallow Catsxp modifying the URL?

[catsxp]

try mac ok!

[redfox]

You must set it as default search engine, then the URL will get modified by Catsxp.

If you leave it in the group of custom search engines, the URL stays as the user defines it.

Catsxp 5.5.3 x64

[catsxp]

try win11 ok!
try win7 ok!
Please try upgrading to 5.5.4

[redfox]

The easiest solution to avoid AI Overview is to switch to Startpage web search. It uses Google search, but without these annoyances.

The other solution is to add the rule 'google.com##.hdzaWe' into Own filters section. But, it will not last long,