A custom Page Builder block with radio, multiple or select attributes does not work.

Steps to reproduce
1. Create a custom block with the following attributes:

attributes:
    test:
        type: multiple
        options:
            option1: one
            option2: two

2. Create a Page and drag the new block to it.
3. Open the block's configuration.

Expected result
The configuration window opens.

Actual result
No configuration window opens. The Page Builder is covered in gray overlay.