I've installed SpaceMonger standalone--outside of ODM. I scanned C:\Users\. The sizes were incredibly wrong (because I don't have 1.4 exabytes of data or a file that's 57,000 gigabytes in size), but that's in another thread. I tried resizing the window and using the Treemap. Then SM crashed.
I'd happily send you the crash.log file, but the support link in the window that appears sends me to the Multiplicity page--not a Support page where I can upload a crash report. Hopefully the first few lines will help. (Another crash was a divide-by-zero failure but this overwrote the first crash log.)
SpaceMonger v3.0 Build 1699 / 20150327-1-F6E5A3CE
SpaceMonger caused an Access Violation (0xc0000005)
in module SpaceMonger.exe at 0023:00c3a447.
Exception handler called in Primary Thread.
Error occurred at 8/31/2018 18:03:40.
D:\OneDrive\Applications\SpaceMonger\SpaceMonger.exe, run by Stefan.
Operating system: unknown Windows version (6.2.9200).
8 processor(s), type 586.
49% memory in use.
2048 MBytes physical memory.
2048 MBytes physical memory free.
0 MBytes paging file.
0 MBytes paging file free.
2048 MBytes user address space.
1892 MBytes user address space free.
Read from location 00000018 caused an access violation.