I did not get this -
We have 6 drives. 4 were busy at the time this happened. Only 2 drives were free.
6 tapes were selected in the volume pool when quick erase button got clicked by mistake.
Within mili second all the 6 tapes started showing in NONE robot type (before they were in TLD).
According to your statement ( which is logical in some cases) -
"Perhaps the tape was still in the drive at the time you looked hence it might say none. Make sure its back in a slot and reinventory the tapes."
How is this possible in my case? 6 tapes were quick erased and started showing in NONE robot type though only 2 drives were free. So it is clear that not all the tapes were moved from the library slots to drives, max only two could have been moved. I also ran inventory at the same time and those 6 tapes were still in NONE robot type.