I’ve never run into this specific problem until today. Generally, issues with resizing can be fixed by increasing the CAPTURERESIZEPCT in Fog Settings > General Settings. I agree with what @Quazz said about certain kinds of fragmentations causing issues with the theoretical minimum partition size. I’ve found that the more used (fragmented?) a drive is, the more likely it is to fail during resize. I was able to get past the no space left on device and numerical result out of range errors by increasing the CAPTURERESIZEPCT to 15%.