Giant files cause jigsaw error

[keflavich]

When loading very big files - or even medium-big files, like the JWST NIRCAM images - I often get a "jigsaw" failure in which the screen looks like this:

Here's a movie showing what happens when I zoom in:
https://user-images.githubusercontent.com/143715/187045336-00b19edc-ee22-4413-864f-e51a9a39b806.mp4

In this example, the file loaded is a 2.3 GB single image (28000 x 10000 pixels)

This is with CARTA beta 3.0.0-beta3

[keflavich]

...ok apparently that version of screen capture doesn't work. Dropbox: https://www.dropbox.com/s/0dwqgfeoi8hvsgg/jigsaw.mov?dl=0

[kswang1029]

are you using CARTA remotely? Could you load the image again and watch the top right corner of the GUI for a green cloud as an indicator of data streaming? Before the green cloud disappears, do not zoom/pan your image.

[keflavich]

Yes, I'm accessing remotely, but I'm not doing any mouse motion at all to trigger this - it happens if I open several images in a row that are position-matched and large enough. I can screencap that later.

The problem is, if this happens, it's unrecoverable - the artifacts (mis-located subframes) stay there permanently

[kswang1029]

One more question: do you enable image matching on append?
I think I know how to reproduce the issue. Just wanted to make sure the steps are the same as yours.

[keflavich]

Yes, I enable image matching on append.