Thanks! This explains the issue then; we’ve recently tightened the CSP so the image viewer refuses to display the files over the network. When you consolidate them, Tropy finds them with no problem, but then then when it tries to display them, there’s a load error again because of the policy.
We will address this in the upcoming 1.7 release. There’s probably going to be a beta release at the end of this week which you could use until the release is ready. If you like I can also explain a workaround (you’d have to edit one file of your current installation).