Lost squiggly line between words if I spaced more than once

[Slyde]

I used to get a small squiggly line between words if I spaced more than once. I somehow lost that ability. How do I get it back?

[RGB-es]

Try installing a grammar checker like LanguageTool.

[Slyde]

I didn’t use that to fix it. But you inadvertently told me where to look for the problem. I’d somehow unchecked the box that performed this. Thanks.