Hello Andrew and welcome to the Community!
Thank you for reporting a possible issue with Sourcetree not detecting files with changes. To understand a bit more, could you provide screenshots and your workflow so we may attempt to recreate the issue?
Additionally, we do see there is a reported defect that may be similar. Please review this reported bug at SRCTREE-6823, If this is similar to your issue please let us know.
Supported Platforms macOS Windows We recently introduced support for additional hosting services such as GitHub Enterprise, GitLab (Cloud, Community Edition, Enterprise Edition), and...
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