Test it with only this mod loaded, and nothing else.
This is problematic since Ctrl+Mouse Left (plus movement keys) is used by vanilla to mass pick-up from entity inventory in a row.

In short : Player can't run and mass pick things up vertically.

The behaviour only happen in vertical movement, but in horizontal it doesn't happen.

Yeah, guess it'd be same Ctrl+W / Ctrl+S.

Easy fix should be pressing Esc for menu, clicking Settings there, then Controls.
You should be able to find these keys there somewhere near the bottom (there's search button in top-right btw):

You can rebind them to something else than Ctrl+W/Ctrl+S by left-clicking each or unbind them entirely by right-clicking, e.g. if you rarely need them anyway and fine with clicking buttons instead.

Oh, i wasn't aware there are hotkey, silly me.
OK, i unbind entirely, already getting used to use it with GUI button.