Hello user group -
Earlier today I reported an issue in which SNAP coregistration of SAR images quit working when the initial offset information comes from georegistration. It was working a couple of months ago and now it does not. It occurred to me that there is another issue that I have not yet reported.
If you use SNAP to do coregistration of a stack of images, and there are more than 2 images (more than 1 slave), then the final interpolated registered slave image in the stack has no content — it is all zeros.
If you have one master and one slave, it appears to work OK.