I confirm. I also lost all the coins, because the wallet overwrites the configuration on restart, and generates a new address.
Moreover, it creates folders with not printable symbols (red arrows) not in the user's profile (black arrow) (I have an operating system with Cyrillic support)
If you have an iridiumwallet.temp change the extenstion to iridiumwallet.wallet and it should work, if you don't have a .temp file, then you've lost your coins.
The search did not yield any results. The problem is that each launch of the wallet generates a new address, and completely overwrites all the settings.
Well that's what you get for not having the god given language locale set as default on your windows machine.
I do not have any problems with other software. Also, there are no problems with wallets for other coins. The problem is clearly not in my operating system.