My bad. the System File Dialog works great in Moi V4 (on windows 10).

tbh, I still use MoI v3 mostly since I encounter performance problems with v4. It's most likely because of my system though. I believe it's something that has to do with Javascript crashing. I also have a very old CPU that I bought for around 15 bucks (i7 3770).

I should be more careful before posting on the forum. I don't want to waste anybody's time, so my apologies.

PS: I keep on noticing these seemingly "Under the hood" improvements between v3 and v4, like support for 7100 FBX, the improvement in File Dialog, and so on. This makes me more excited for v5, as I'm starting to rely more and more on MoI in my workflow. Best of Luck with it!

- Flowgun