To overcome the error until it’s get fixed
Open the broken screen .bky file by using 7zip and edit.
Find
method_name=“Exists”, select and cut but only if it contains type text block
paste just below </block>
NOTE: it can vary from project to project where to paste
where to paste
find the last </block>
do this process if you have multiple Exists block
P.S there might be other blocks as well that causes this error
As you can see we are unable to attach type text to scope but in the above example it is and there by it breaks the whole project