R group is not displayed after exporting from CDXML, base64 cdx, cdx formats

[AnnaKosol]

Steps to Reproduce

1. Open Ketcher
2. Add file
   r group.ket.zip

or create manually

3. save to CDXML (or CDX, base64 cdx) format
4. open saving file on the canvas

Expected behavior

Actual behavior
no R-group

Environment details:
Ketcher Version 2.23.0-rc.3 Build at 2024-08-08; 13:17:49
Indigo Version 1.24.0-dev.1.0-g5561a82a1-wasm32-wasm-clang-19.0.0
Chrome Версия 126.0.6478.127 (Официальная сборка), (arm64)
MacOs Sonoma 14.5