logstash-input-azureblob do not read all blobs it found

I stream logs from Application Insight to Blob Storage. There are around 200 files inside. logstash-input-azureblob reads only Metrics blobs from blob storage. If using path_filters to set more specific part of the whole blob storage, it works. If I set list more paths (or all paths, or not setting this option at all), not all blobs are being processed. Using logstash debugging I can see the plugin correctly finds all blobs but their offset stays at 0 and are never processed. This is quite a serious bug.