I am trying to import assets into a new system, I am running 25.1 Build 25.101.0153.4
My import scenario looks like:

When testing the import on 6 transactions, With ‘Break on’ options cleared. I get the following results:

If I make the first transaction in active, the error moves down.

I have am not specifiying correctly with the Save function. What is very curious is I have used this same scenario to import the same data into the Test system.
Any ideas?