No pretranslation results

I've started setting up projects instead of translating individual files, as I've done heretofore. There is a project TM (not terribly extensive); I've put in MyMemory, too.  I'm getting no pretranslation results. I've clearly set something up wrong.

I go to project settings and I see all the TMs (including the two I've mentioned) listed; I see check marks next to enabled, look-up,  concordance.

(Actually, I not only see all those TMs, I see doubles - for the  PROJECT TM I see "[projectTM]" and "[projectTM]_[projectTM].sdltm" - I don't recall seeing that kind of thing before.)

Studio 2017 on a PC, Windows 10.

Any thoughts? Thanks in advance!