Adding helpText to a field after initial creation causes layout issues
This is 'best I can tell', I'm not super well versed in CSS grid.
It appears that if you initialize some Field inside a Fields without helptext, it will not generate the row for helpText. This is 👍, for layout reasons. However, if you later add helpText (in for example, an error scenario) it creates a whole new column in which to place the helpText. See attached:


Current Bad Workaround: Pass some whitespace into helpText to ensure the row is properly generated, if you later might need that row.
Huh, good call. The grid system may be a little inflexible. Honestly, it's a bit hacked anyway... it's been hard to come up with a good, stable solution for vertically-aligned multi-column field layouts.