All three ls commands on the right pane were run quickly one after another.
As shown even the first call shows that ls is reporting the size of the file to be significantly larger than what progress reports.
The subsequent calls show that the size of asdf.img is increasing rapidly while progress reports zero transfer speed.
There is possibly something weird about this file because without the --sparse=never argument cp will eventually crash at 3Mb copied with cp: cannot lseek 'asdf.img': Invalid argument
However, even with a file that doesn't have this issue I get the same behavior:

All three ls commands on the right pane were run quickly one after another.
As shown even the first call shows that
lsis reporting the size of the file to be significantly larger than whatprogressreports.The subsequent calls show that the size of
asdf.imgis increasing rapidly while progress reports zero transfer speed.There is possibly something weird about this file because without the
--sparse=neverargument cp will eventually crash at 3Mb copied withcp: cannot lseek 'asdf.img': Invalid argumentHowever, even with a file that doesn't have this issue I get the same behavior: