Attached pictures are not shown in some posts

Here is an example from a post I made in 2019: Mixed volume rendering and surface representation of segmentation has incorrect 3D appearance if segment is not fully opaque - #3 by mikebind

I posted three screenshots in that thread, almost certainly all as Win-Shift-S captures and then pasted into the text box. The first two have disappeared, and the third is still visible. A screenshot from Andras is also still visible.