Ran into another bug: the game hung at the end of a roll, and the console showed:
ERROR: Condition "!mem" is true. Returned: nullptr index.js:362:18
at: alloc_static (core/os/memory.cpp:77) - Condition "!mem" is true. Returned: nullptr index.js:362:18
ERROR: Condition "!mem" is true. Returned: nullptr index.js:362:18
at: alloc_static (core/os/memory.cpp:77) - Condition "!mem" is true. Returned: nullptr index.js:362:18
ERROR: Condition "!mem" is true. Returned: nullptr index.js:362:18
at: alloc_static (core/os/memory.cpp:77) - Condition "!mem" is true. Returned: nullptr index.js:362:18
ERROR: Out of memory. index.js:362:18
at: create_element (./core/hash_map.h:196) - Condition "!e" is true. Returned: nullptr index.js:362:18
ERROR: FATAL: Condition "!e" is true. index.js:362:18
at: operator[] (./core/hash_map.h:437) - FATAL: Condition "!e" is true. index.js:362:18
Uncaught RuntimeError: unreachable executed
move_cb https://v6p9d9t4.ssl.hwcdn.net/html/6178337/index.js:9
Looks like there may be a memory leak?