Feedback Case #56743 was marked as fixed back in September of last year, but the issue is still occurring in 19r3.1 as of this morning on both Linux and macOS. I've opened a new report Feedback Case #59527.
Never mind - they changed the location where the collected image files are placed.
To be precise, the files were always going to an Images folder. The prior bug that was fixed prevented that Images folder from being inadvertently deleted in certain situations.