(B1900.8) Cannot open scenario: "Object reference not set to an instance of an object"

[oiajz]

Upon trying to open a scenario which I have been working on, my computer freezes for maybe half a second and the below error appears. I know the devs prefer clean scenarios for bug reporting but I have had this happen before, maybe a year ago, and both times I have had between 1500-3000 units, so maybe it is linked to that? Either way I have no idea what caused it so this is the best that I can offer. I have included the exception log as well.

Screenshot 2026-08-27 232752.png (14.63 KiB) Viewed 65 times

[Raptorx7_slith]

Thanks, logged as 0017585