ExtensionPoints will not load properly in 2020.3 IDEA, but will load properly in 2022.3 IDEA

1. My plugin is divided into root module and sub-module. Some ExtensionPoints are defined in root module, and these ExtensionPoints are extended in sub-module. Sub-modules are used to realize different functions under different Intellij products. The java language submodule extension implementation works in IDEA, and the python submodule extension implementation works in Pycharm

- Project structure

- root plugin.xml declara extensionPoints

- Sub-modules implementation

2, I use ExtensionPointName. Create to obtain RelateContext extension point: ExtensionPointName. Create (" com. Vivo. Aicode. RelateContext ").getExtensionList(), which I used in version 2022.3 of IDEA to load to the implemented extension point normally. However, the 2020.3 version of IDEA cannot load getExtensionList() and gets size 0

- 2020.3 log print

- 2022.3 log print

my plugin zip file：https://Upload id: 2024_08_08_vAjxkEFdc3Gkn2fmYSWaXy (file: AICode-2.4.0-beta.zip)

4、My question:
a）ExtensionPointName. If the create is do not support running in version 2020.3?
b）What should I do to get the extension list correctly in 2020.3