Weird tag prefix space on tag label

[ben]

I can't figure out where there is this weird single space indent/prefix on the middle line of my left aligned tags. It's only on the left aligned ones and on the middle line (before size). I've checked and prefix in the label is blank and the space for after size to make a space between size and system abbreviation.

[iainsavage]

Upload tag family please.

[ben]

Attached

[bjlottis · Accepted solution]

I tried it on a quick model using the OBO template. No issues here. So maybe it's something in your model, and not the tag.

[iainsavage]

I'm not seeing the misalignment either:-