BOOM configs generates empty .out file

[rthelionheart24]

I have Chipyard fully setup and tried running a few configs that comes with the repo.
make find-config-fragments gives me a full list of config fragments.

I first ran an assembly file, rv64ui-p-add, on the default RocketConfig, and it produces a meaningful output file ending in .out.

However, when I tried running a BOOM tile (chipyard.MediumBoomV3Config), I am getting empty .out file:

I am wondering what the reason is? My educated guess is that the BOOM config isn't complete and doesn't contain all peripherals ($, TLB, etc). But as the scala code suggested, RocketConfig and MediumBoomV3Config is almost identical with the only difference being they use different core.