What did you do?
Updated to 2.1.19 yesterday and tried to load my existing save.

What happened?
Factorio crashed to desktop.

What did you expect to happen instead? It might be obvious to you, but do it anyway!
Expected my save to be loaded.

Does it happen always, once, or sometimes?
Happens ...

So does anything more need to be done here or is this now in the queue to be fixed whenever someone can get around to it?

I think you nailed it. I tried forcing the signals window on top and it worked.

https://youtu.be/bjnppKPvRCc

Not sure why the video didn't attach, trying again. It's interesting that Muche's behavior is different. Even with a number being in the field already it still will not highlight the field.

Edit: file appears correctly in attachment box, but does not end up attached to the message. Uploaded to ...

When using setting the quantity for any kind of filter/combinator/etc when clicking the quantity button the quantity field is highlighted ready for the user to input a number overwriting the existing value.

However, when an inserter is being controlled by a logistic network value, the behavior is ...