HDR Workflow - LR Classic - PS - Back to LR Classic

I'm having trouble pin pointing an issue I have. I've recently switched my HDR workflow from Photomatix to processing HDR directly in LR for more flexability. When I used Photomatix it provided TIFF files for me to edit, and I could take any image into Photoshop for speciality editing, save it, and it updates perfectly in LR without any color or gamma shifts.

Now, while I am editing these Lightroom HDR photos (in SDR Preview, I am not delivering HDR files) and I send an image to photoshop it will come in flat and without my edits (it's a 32-bit file inside of PS) and I cannot do my work in Photoshop and return to LR with my original adjustments intact. What part of this workflow am I missing?

Thanks everyone!