@Vlad it would be better to have toggles for each custom redirect in the settings UI. And I don't think that disabling custom redirects with the personalization toggle is good UX, I expect this toggle to only influence my domain rankings.
I already had the same issue as OP, I wanted to disable a custom redirect because it wasn't working, not only for this one search, but until the redirect works again.
But I only had the option to delete it, this means I would need to rewrite this custom redirect the next time I want to use it. What I did was to write 'disabled' in front of the regex, which basically disables it, as it'll never match, but this is not the best solution.
