Ok I see this is a problem with One More Tier. They were a bit careless in copying properties from the mod directly (in this case the icon size). I'll see if I can do a dirty patch before submitting a fix on that mod directly.
So far I'm not seeing any trouble with the mods I have, e.g. FE+ Transport contains titanium pipes (aka. Pipe MK2) and storage tanks. So far, no trouble. Thank you for your work. :-)