Azure Pipeline跨仓库触发器失效：RepoA更新无法触发流水线

我将流水线YAML文件存储在名为Pipelines的仓库中，期望当另一个仓库RepoA发生更新时触发该流水线。参考微软官方文档《Check out multiple repositories in your pipeline》后，编写了如下流水线配置：

# YAML: Pipelines/test-pipeline.yml
trigger:
- develop

resources:
  repositories:
  - repository: A
    type: git
    name: RepoA
    ref: main
    trigger:
    - main
    - develop

steps:
- checkout: self
- checkout: A

预期触发逻辑 #

实际问题 #

RepoA仓库的更新无法触发该流水线。我尝试了以下三种修改方案，均无效：

尝试1：添加RepoA的项目名称 #

trigger:
- develop

resources:
  repositories:
  - repository: A
    type: git
    name: MyProject/RepoA
    ref: main
    trigger:
    - main
    - develop

steps:
- checkout: self
- checkout: A

结果：无效（注：Pipelines仓库与RepoA仓库同属MyProject项目）

尝试2：在RepoA的触发分支前添加refs/heads/前缀 #

结果：无效

尝试3：调整触发器为完整分支包含格式 #

trigger:
- develop

resources:
  repositories:
  - repository: A
    type: git
    name: MyProject/RepoA
    ref: main
    trigger:
      branches:
        include:
          - main
          - develop

steps:
- checkout: self
- checkout: A

结果：无效

请问我是否遗漏了流水线或项目设置中的某些规则？

内容的提问来源于stack exchange，提问作者YuLun