When is the next update?
It's automatic as soon as you exit. It saves from last defeated enemy/shop/forge
The forge isn't working correctly. Some of the conversions/trade are not appropriate.
Got Mudstone[45HP] for 3 Gravel [55HP]
All the [common] blocks give Grass
Make sure its the 1.18 version, there was a recent upload of the LEGACY (1.0) that auto updated if you use the itch.io app.
To set weapons to different buttons, just hover your mouse over them in the island builder and push the key you want them to bind to. max of 8 weapons per key bind.