Placed photoshop documents crashing everything
I have an InDesign document with quite a few placed Photoshop images. (This is a children's book, so, very image-heavy.) I have now experienced this behavior twice:
1) I make a layer change in Photoshop (CC 2017). I save the file. The file save appears to be complete.
2) I return to InDesign (Adobe InDesign 2020). The linked file menu gives me the "update required" exclamation point. I double-click it and confirm that, because layers have changed, some settings may be lost.
3) InDesign gives me the spinning beach ball. I wait for several minutes (walk away, get a snack), and return; still beachballed.
4) I click over to Photoshop, which tells me the previous save actually *isn't* done; it's at 84% (same percentage both times). I wait several more minutes.
5) The first time this happened, I tried to go to another application to kill time, and Finder started acting up. I tried to re-launch Finder, but it fails, repeatedly; thoroughly wedged. The second time this happened, my entire computer simply froze (no cursor or anything). I've never seen my computer (MacBook Pro, Mojave 10.14) freeze before.
6) The first time this happened, I panicked. Both times, I had to do a hard reset, restart in safe mode, etc. Interestingly, the first time this happened, I was rewarded with an honestly beautiful glitched .psd file (though I didn't love losing the work). The second time, the glitched file was just solid black; boring.
7) Unfortunately, I can't submit a "report crash details to Adobe" because, as mentioned, the entire computer goes down.
My mental model of what's happening here is that InDesign and/or Photoshop are not properly negotiating file lock, and Finder gets caught in the cross-fire. ...Has anyone else seen this? Any tips of what to avoid? I could probably go with "simply never edit a linked file while InDesign is running," but that seems like a pretty major workflow slowdown, and vulnerable to my forgetting it. (Admittedly, less of a workflow slowdown than 10 minutes of crashing + 20 minutes for safe mode restart = 30 total minutes of panicking and having to cancel meetings.)