Subject Selection in Lr Classic not as good in Lr Mobile

[Neal Phupi]

I am using Lightroom Classic version: 11.2 on my M1 Pro. When i use the subject selection, it does not do a very good at detecting the subject, it will select other areas as well. The Lr Mobile is better in subject selection whether I'm using it on my mac or mobile. I can't seems to find thread here. What is wrong with my Lr Classic? Help!

I am a subscriber

[Rikk Flohr: Photography]

Lightroom Mobile and Lightroom Classic use the same ML Model and Camera Raw Engine.  Verify that you are using the same dot version on each (e.g. LrC 11.2 and LrM 7.2). 

If this happening, we would need a sample file that misbehaves as well as a screenshot of both the LrC and LrM interfaces with Select Subject enabled. 

Additionally, we need to know if you are syncing the file from LrC to the cloud (Smart Preview) or if it is a Full Res image in the cloud being synced down to LrM. 

[Neal Phupi]

hi thanks for replying, I installed the same dot version of the LrC and LrM and reinstalled my camera raw engine to 14.4. However, upon doing subject selection, the LrC still does not select properly. I have attached sample from both apps.

this is subject selection in LrC:

this is subject selection in LrM:

I only have the LrM sync on my cloud.

[Rikk Flohr: Photography]

Can you supply an original (DNG/raw) sample of this file?

[Neal Phupi]

Hi, apology for the very late reply, Happy New Year by the way.

I just got back to editing photos on LrC again and after the latest version, the subject selection is still not working properly.

Current LrC version and laptop info:

Lightroom Classic version: 12.1 [ 202212072312-d7ab524b ]
License: Creative Cloud
Language setting: en-MY
Operating system: Mac OS 13
Version: 13.0.1 [22A400]
Application architecture: x64 (emulated)
Logical processor count: 8
Processor speed: 2.4GHz
SqLite Version: 3.36.0
Built-in memory: 16,384.0 MB
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 744.3 MB (4.5%)
Virtual memory used by Lightroom: 48,908.3 MB
Memory cache size: 33.6MB
Internal Camera Raw version: 15.1 [ 1329 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 1108MB / 8191MB (13%)
Camera Raw real memory: 1246MB / 16384MB (7%)
Standard Preview Size: 3600 pixels
Displays: 1) 3600x2338

Graphics Processor Info:
Metal: Apple M1 Pro
Init State: GPU for Export supported by default
User Preference: Auto

Settings Folder: /Users/ronventures/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Canon Professional Print & Layout
4) Flickr
5) Nikon Tether Plugin

Config.lua flags: None

Example of subject selection problem:

Hair selection

Face selection

I am unable to upload the original raw sample (ARW type), even converted it to DNG to no avail.

Thank you!