Ignoring multiple errors at once in a non-opened segment does not work. It looks like it works, but changes are actually not saved. So if you reload the grid or look into the left-side autoqa panel and filter there for "ignored errors" they are actually still not ignored, unlike when when ignoring individually via checking the checkbox.

Also, it should be investigated why test for TRANSLATE-3054 does not detect that problem desptite spreading false-positivity is explicitly tested there.