Cannot decrease processed workunit count (722989) to lower value than before (722990)

Hi there

I am trying to ingest a 420gb Windows 11 VM Image file.
I am getting this random error message when running Ingest Modules (Hash Lookup + File Type Identification). I am running Autopsy 4.20. I have deleted the Autopsy folder from AppData/Roaming, and created a new case… It still appears somewhat randomly.

Is it worth ignoring the message? Anyone else get something similar?

java.lang.IllegalArgumentException: Cannot decrease processed workunit count (722989) to lower value than before (722990)
at org.netbeans.modules.progress.spi.InternalHandle.progress(
at org.netbeans.api.progress.ProgressHandle.progress(
at org.sleuthkit.autopsy.ingest.IngestJobExecutor.lambda$updateFileProgressBarForFileTaskStarted$10(
at java.awt.event.InvocationEvent.dispatch(
at java.awt.EventQueue.dispatchEventImpl(
at java.awt.EventQueue.access$500(
at java.awt.EventQueue$
at java.awt.EventQueue$
at Method)
at java.awt.EventQueue.dispatchEvent(
at org.netbeans.core.TimableEventQueue.dispatchEvent(
[catch] at java.awt.EventDispatchThread.pumpOneEventForFilters(
at java.awt.EventDispatchThread.pumpEventsForFilter(
at java.awt.EventDispatchThread.pumpEventsForHierarchy(
at java.awt.EventDispatchThread.pumpEvents(
at java.awt.EventDispatchThread.pumpEvents(

Perhaps an edge case. I recall running a Python script at the time. I retested and found bugs in my script. With certain data, my dodgy coding lead to python processes repopulating (without exit) and running idle. Resources were possibly prioritised to Python, until Autopsy complained ‘you can’t squeeze me anymore’.