Enjoying it so far but I'm having some minor issues with screen resolution...

My main screen is native 2560 x 1080, but when running the game in fullscreen I can only select 1920 x 1080. If I put it in to Windowed mode I can select 2560 x 1080 but then I have the Windows UI bar at the top.

I've seen on reddit/r/battletech about how to get borderless windows mode but I'd prefer to run fullscreen.

Anyone else getting a similar issue?

Yeah, having some weird issues myself on a 3440x1440 display.

i could pick 3440x1440 on initial launch and the game displayed at that resolution, however after that the options only go up to 2560x1440.

Sadly though, the out of battle UI doesn't scale properly on 3440x1440, with confirmation buttons appearing off screen and menu elements overlapping in some cases (such as character creation).

It certainly needs sorting as there is some weirdness going on for sure.

Same Issue here on a 3440x1440 display. I'm stuck at 2560x1440 (can't select higher resolution). That's a big part of my screen not used.

I thought the time where games didn't support ultra-wide screens was over. I was obviously wrong.

Yep, same issue. This is really sad. I hope the devs sort this out quickly, it's really killing my enjoyment of the whole thing.

Same issues here on my 3440x1440 screen. Has this issue been reported do you know?

This was reported to the devs during the live steam at launch. They said that ultrawide is not supported. Several people complained about the lack of it. Best place to let them know you want it or are having issues due to the lack of it is on the Paradox forum or through Paradox support.

Here are the workaround from the Devs: https://forum.paradoxplaza.com/forum/index.php?threads/regarding-screen-resolutions-aspect-ratios.1092119/