Logic Pro X Bouncing with mastering plug-in


Is it wrong if I bounce individual midi tracks with a mastering plug-in ? I am using iZotope Ozone 7 on master output. I have noticed that after bouncing, the audio file goes off the grid. Changed the buffer size to 1024 in low latency mode but the result is same.

Logic X Pro 10.4.4 Macbook Pro 15.4 Retina 10.13.6. 2015. Audio Interface :Steinberg UR44.