Thanks for playing and the great feedback!
The 2 big things we are currently working on are art and combat. We are starting with the characters, which are getting completely redone, but all of the icons and item art will be getting updated as well.
The first combat update should be ready soon. We are removing the belt, so you will only be dealing with the bags, though do not currently have any new systems for auto moving items to the individual bags. We do plan to add a shortcut (Alt right-click) that will split an item stack and give an equal amount to each of the Slimes. In combat, instead of starting by choosing an item, you will pick an ability, and then choose the item to use with it. You will be able to pick any item from the Slime's bag, though many abilities will have limits on what items can be used with them, such as a fire ability needing a fire item. To start it will show all items that can be used, but later we plan to add in filtering as well so you can narrow it down further. We are hoping these changes make the combat more enjoyable, and the item management less tedious. Once the combat is updated, the inventory UI will be reviewed and updated to better align with the new combat. The Quest Log and Inventory will be joined into a new UI, which will also get new screens for details on abilities and character stats. Hopefully the new systems will resolve some of the issues you are having with it.
We want people to be able to explore & enjoy the towns. If you click the button at the top left of the town menu, the one with a white square and arrows, it will minimize the town UI, so you can see everything on screen. Click again to restore the UI, You can also click on the menu entry for any option you have opened to close it. We have plans for the future to actually have your party, optionally, travel to each of the town locations. There is a, currently hidden, toggle at the bottom that will allow you to change this right from the town menu. When enabled and you select a location from the town menu, it will be hidden as your party moves to the correct building, before opening to show the interaction options. We need to update the towns before this will be ready, but it is something we think will make the towns feel better, even if we don't offer the player full control of the characters to explore them.
Obviously, getting the save system working again will also be a big help for playing further, but there are just too many new features and changes being worked on that we never quite get to it.
We really appreciate the time you put into playing and your feedback!