Opening this file in SAM 2020.2.29 for Windows results in error:

Also reported by another user here:

https://sam.nrel.gov/forum/forum-general/3146

From Brian:

I pulled this up in the debugger and stepped through it a bit, and came up with the possibly more helpful error message:

16:52:50: discrepancy reading in values from project file: 0 not found, 0 wrong type, 822 read != 824 in config

Looks like maybe there are issues for cases where we adjusted the defaults between patches? Can you get any info on what case(s) are in the file so we have a better shot at reproducing it?