Neo4j admin is stuck when bulk importing

I'm trying to import ~1TB of data into an empty neo4j database using neo4j admin.

I'm running on a desktop machine with ~4TB NVMe for neo4j, and 128GB RAM.

Neo4j admin runs all the way to the following step.

Importing relationships
.......... .......... .......... .......... ..........   5% Γêå25m 40s 53ms [25m 40s 53ms]
.......... .......... .......... .......... ..........  10% Γêå25m 32s 353ms [51m 12s 407ms]
.......... .......... .......... .......... ..........  15% Γêå29m 49s 697ms [1h 21m 2s 104ms]
.......... .......... .......... .......... ..........  20% Γêå40m 55s 846ms [2h 1m 57s 950ms]
.....

It is stuck for ~1 day at this step, it has consumed all the space on the NVMe (all the 4TB), not using ~43% of memory taken (but from Task Manager, cannot find the application using that memory), no NVMe or CPU usage.

I checked the last modified time of all the files in the /import directory of the database, and none was modified in ~24h.

I had a similar situation in past, but it got unblocked and continued after ~48h. Obviously, you can point to the lack of free space left on the NVMe, but given it got unblocked and since it is not giving me any errors, I suppose that is not the best explanation.

I wonder if getting stuck like this (not using any of the resources) rings any bells and if there is anything I can do to speed up or fix this, given that I cannot add more NVMe or memory.