projectColors property Error

HI, I made simple screen with floating action button for test.
simple project

when occured the Error.

  1. change the action button’s Background Color.
  2. change the Screen1’s Background Color.
    change default color

There’s nothing the Error at present.

after that Save project as or Export project and Import project.

In this new project or Imported project, when try change Background Color the Error occur.


  1. change Background Color in Blocks.
  2. Export project and delete projectColors colume in and Import project.
    ex) delete: projectColors=[{“hexa”:“03A9F3FF”,“freq”:“1”}]

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