I've been happily playing Walden for 6 years. I played most recently two months ago. Today I went to play again and there were no arrowheads visible in the game (you collect arrowheads in the game and some of them trigger things to happen within the game). There are usually hundreds of them lying around, but today not one appears. I thought it might be an Itch problem so I downloaded the game on Steam - same problem. If I load an old game, the arrowheads appear as normal. Any hints as to what might be going on?