latest release (is still) crashing...

web_page_highmem.js?1700425047:622 Aborted(Assertion failed: attempt to write non-integer (undefined) into integer heap)
web_page_highmem.js?1700425047:641 Uncaught RuntimeError: Aborted(Assertion failed: attempt to write non-integer (undefined) into integer heap)
at abort (web_page_highmem.js?1700425047:641:11)
at assert (web_page_highmem.js?1700425047:316:5)
at checkInt (web_page_highmem.js?1700425047:954:3)
at checkInt32 (web_page_highmem.js?1700425047:962:29)
at Object.uiEventHandlerFunc [as handlerFunc] (web_page_highmem.js?1700425047:8437:43)
at jsEventHandler (web_page_highmem.js?1700425047:4513:24)

I haven't been able to upgrade from 3.1.30 forward since I get errors in the new releases.
This is using normal sdl2+webgl+emscripten pipeline...