After Loading any level from the lobby or the level editor,
backgrounds are then wrongly loaded or positioned

they look correct in the level editor but when you test 
       

Not sure if this actually makes a difference or if it's just an animation thing

HTML:
https://youtu.be/m9qS98SLkd8

Flash:
https://youtu.be/TlgQdYj9k2Y

I'm only affected by the freeze

See below

the player doesn't keep their speed when hitting a rotate block

first clip is the html version
second clip is the flash version

e.g. can't place any mines in the boxed area, they only appear to the left

I got the Disconnected dialog, but instead of logging me out everything just became un-interactable

Dialog boxes are all huge. Example: