There seems to be a bug where neutralizer's charge attack doesn't detonate tags on hit.

This happened to me at least three times yesterday.

I'd also like to highlight that neutralizer's tags dont seem to scale properly in Tier 2 and Stratum 6. (I already submitted a bug report on this but I thought I'd elaborate here). Throughout tier 2 the damage alternates between 57 and 58. (It goes back down to 57 at the end of the tier) And in stratum 6, tag damage decreases as you get deeper