I used the rat morph, swam in the water, hit the 'mouse morph' button again (got a 'you can't use this in the water' message), switched out the mouse morph for the draisine, and then hopped on a draisine track. Now, I got on the draisine fine, but I couldn't get off... I couldn't "Unstick me" (due to movement on draisine)... I went to the bandit cave area (where the rail 'ends') and when I came to the end of the track I was still in rat morph form.

Suggests to me that the morph's button lock-out is still applied, even though I am riding on draisine now. Also possibly related to an issue with not using other items while morphed.

Another separate bug - maybe?

There's a headless red shirted NPC sitting in the rail cave just right of onnet woods.