My browser / operating system: MacOS Macintosh X 10.15.7, Safari 18.5, No Flash version detected
When I go into a project sometimes it let me play it for 2-5 seconds on one project and then crashes I retry I does it again
Sometimes my sound randomly stops and I have to refresh the page
Sometimes scratch freezes the app I use and one time it froze and randomly refresh or I have to wait a couple/few seconds and it will work again
Please fix this

Are you going on large projects?
Also, what operating system are you using, including the version? (other Apple OSes can report “MacOS” on the forums)

browser may be at play here