Lightroom classic fails creating a panorama preview

[Marvin Andreas5D98]

I try to create a multi-row-panorama since the last couple of days but i run into the same issues every time.

What i do step by step:

1. I choose my pictures, they are around 45 in 3 rows. All shot on 200mm with my canon eos r5, so every image has a size of 45MP.

2. Ichoose the merge as panorama option and lightroom starts creating a preview. This is very fast in the beginning and uses ca. 30-40% of my CPUs processing power and 60-80% of RAM.

3. In ca the middle of creating the preview, Lightroom seems to stop the process and the system usage drops to nearly idle exept for the RAM.

4. Nothing happens from here, it justs sits there doing nothing i guess.

Any ideas how i could get this to work? I've seen other photographers do it with similar data-sizes and also in Lightroom and it was slow but worked.  

[GoldingD]

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Paste that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut as that is just so much dead space to us non-Techs.

[Marvin Andreas5D98]

Hi GoldingD, thx for reaching out to me this fast! Here is my stystem information as requested:

Lightroom Classic version: 11.0 [ 202110120910-0bccc70d ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Business Edition
Version: 10.0.19043
Application architecture: x64
System architecture: x64
Logical processor count: 24
Processor speed: 3,7GHz
SqLite Version: 3.36.0
Built-in memory: 65479,4 MB
Real memory available to Lightroom: 65479,4 MB
Real memory used by Lightroom: 1554,7 MB (2,3%)
Virtual memory used by Lightroom: 2727,8 MB
GDI objects count: 652
USER objects count: 1911
Process handles count: 2473
Memory cache size: 484,9MB
Internal Camera Raw version: 14.0 [ 950 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 506MB / 32739MB (1%)
Camera Raw real memory: 463MB / 65479MB (0%)
System DPI setting: 144 DPI (high DPI mode)
Desktop composition enabled: Yes
Displays: 1) 3840x2160, 2) 2560x1440
Input types: Multitouch: No, Integrated touch: No, Integrated pen: Yes, External touch: No, External pen: Yes, Keyboard: No

Graphics Processor Info:
DirectX: NVIDIA GeForce RTX 2080 Ti (30.0.14.7212)

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: D:\Bilder\Lightroom\Lightroom Catalog-v11.lrcat
Settings Folder: C:\Users\Marvin\AppData\Roaming\Adobe\Lightroom

Installed Plugins:
1) AdobeStock
2) Facebook
3) Flickr
4) Nikon Tether Plugin

Thanks again for the fast reply!