Camera Raw & DNG: Lens Profile Creator can't handle 36 MP DNGs or JPGs from Pentax K-1

First the software used and the environment:

Adobe Lens Profile Creator, version 1.0.4. for Windows
on a 64-bit Windows 10 computer with 16 GB RAM, 128 GB system SSD.

The problem: I tried to calibrate a lens for my Pentax K-1 and its 36 MP sensor - and found that the Adobe Lens Profile Creator (ver. 1.0.4.) was not willing to process the full resolution DNGs with the required test chart shots. It gave a warning that - looking for the corners of the test chart - the memory requirements were exceeded and that I should try with a lesser number of images. I reduced the nine provided shots to three, but got the same warning - starting with the first pic analyzed.

I then converted the DNGs to full resolution JPGs using LR CC and tried again - same result.

For a third try I limited the longest edge of newly converted JPGs to 3000 px - and the lens profile creation process with the same pics (now downsized) went through. But I found that the created profiles weren't available for my DNGs - and that's what I wanted them for. 

I found a workaround for that - simply switched the RAW tag in the created .LCP file to "true" - but of course am not satisfied with this solution. I would really like to be able to process the full rez DNGs without any workarounds. Are the 36MP DNGs/JPGs simply too big for processing?

Phil