A shame you couldn't get the gameplay done in time, because the art is really high quality! which to be honest was probably your downfall, too much time on the art/making it look nice not enough on gameplay but, it's a common pitfall for a game jam.
I will say, for what little combat I got to do was a fun idea of having many different abilities of each party member you can all use on cooldown, on use items and everything like that, but after a couple encounters the enemies sort of just stopped attacking/being able to be hit.
Also I noticed the use of unreal 5 as the virtual shadow map flickering was straining my eyes. you might want to look into how to disable that for now. What I did for my unreal game was to set shadow maps back to regular shadow maps in the settings and force dynamic lighting as well. Keeps the quality shadows you want but prevents a lot of the issues unreal engine has at the moment.
Also since it is unreal engine 5 this game is quite rough on the optimization, once I loaded into the main area my graphics card was hitting 95% usage and that was even after I changed the FPS cap to 60 in the nvidia control panel, when it defaults to my 144hz monitor refresh rate.