Reaching the spider boss, the game magically deleted my stats/progress at some point where I was level 4 / had 9 strength and over 10 health, but upon attacking the spider, I did 3 damage then instantly died? It reverted my progress back to 10hp, 3 str, level 1 at some point after burning the plants and reaching the boss, Loading my save after dying shows I was 'somehow' level 1 even though I had defeated all the enemies prior.
Not an enjoyable bug to run into.