4.0.0 Uploading images in OSX Safari throws Promise Error

When trying to a. pasting or b. dragging images to MM webclient, in case a nothing happens and in case b you can see for a second a preview image but no inline images in the chat:

is this known? can it be solved?

( i cannot post more than one image here, lol)

greetings and keep up the good work!

In case anyone comes across this here, we discussed it on GitHub issues and it’s been fixed for 4.2.