Hi @Oliver Ziegler - Thanks for reaching out over Q&A Forum.
Based on the snippet that you have provided; I could see that the blob is of type Page Blobs however LifeCycle Management policy is only supported for block blobs and append blobs. That seem to be potential issue in here:
https://learn.microsoft.com/en-us/azure/storage/blobs/lifecycle-management-overview#rule-actions
You can test this by creating some version of blockblobs type with a short period just for isolation.
Now, if this is limitation due to Page Blobs, below are the options to explore ahead:
You can try converting page blobs to block blobs and then let them get processed via LCM.
Alternatively, you might need to explore other options such as Logic app solution to delete these version irrespective of blob type.
Please let me know for any further queries and will be glad to assist.
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