I have tried to use other similar lens profiles available in Lightroom but none of them come close to removing the distortion.
The 16-35mm f/2.8L lens profile seems to be available there when I first open images but not after I have done HDR merge. This is a huge problem.
Pre-HDR Processing to Bracketed Image Files: None applied. Linear DNG files are created and merged to a single 16bit Floating Point DNG file.
Post-HDR Processing: White Balance, Sharpening & Noise Reduction Settings, Lens Profile settings, Remove Chromatic Aberration setting, and Camera Calibration settings from the highlighted bracketed image file are assigned to the HDR DNG file inside LR.
When using 'Edit In> Merge to HDR Pro' in PS the following settings are applied:
Pre-HDR Processing to Bracketed Image Files: White Balance, Sharpening, Noise Reduction, Lens Profile settings, Remove Chromatic Aberration setting, Camera Calibration
Post-HDR Processing: ‘As Shot’ WB settings are assigned to the returned 32 bit HDR TIFF file inside LR.(NOTE: Verified using LR 7.4)