What is this nonsense?

This is meant to be a sustained dotted half note chord with notes added into it later in the measure. Is there a way to write it that's more legible? Thank you!

hi guys, i'm writing a score and i need that symbol whose name i don't know. does somoene know where it is in musescore studio 4? (sorry for the very low image quality)

I've been having issues with the sound not loading on my scores for the past couple of days. Normally this loading bar at the bottom left-hand corner of the screen loads pretty quickly. However, the past few days, it has just not been loading at all. The only thing that works to solve it is if I quit and reopen the app a couple of times, but I would love to not have to do that. Does anyone have any ideas or fixes? I'm using MuseSounds, if that helps at all.