Unable to create entity with Association using Entity Inspector

[owlet1997]

Environment:
Jmix version: 1.0.999-SNAPSHOT, 1.1.0-SNAPSHOT
Jmix Studio plugin version: 1.0.2-212
IntelliJ version: IntelliJ IDEA 2021.2.1 (Community Edition)

TC:

1. Open attached project -> Run app
2. Create some NewEntitiy instances
3. Open Entity Inspector -> Select Acc Part entity in the combobox
4. Create -> Open the newEn lookup -> select any NewEntity instance

AR:
Select button is disabled: