I am on a Windows Surface Pro and I always receive this error. Have tried rebooting, uploading less, uploading one, different album, different photos. It says 'some photos were not added', but no files are usually uploaded. Once out of many attempts it worked that 8 of 88 photos uploaded, a mix of CR2 & JPG and cant figure out whats going on.
Lightroom version: 5.0 WAS x64 [ 20211012-0002-a1240ed ] (Oct 12 2021) NGL Version: 18.104.22.168 WF Version: 4.0 8176236 VF Version: 0.1.36.2 HIL Version: 40400 Operating system: Windows 10 OS Version: Windows 10 Home (2004) Application architecture: x64 System architecture: x64 Computer model: Microsoft Corporation Surface Pro 7 / Intel(R) Core(TM) i5-1035G4 CPU @ 1.10GHz Logical processor count: 8 Processor speed: 1.4 GHz Built-in memory: 7778.1 MB Real memory available to Lightroom: 7778.1 MB Real memory used by Lightroom: 2387.2 MB (30.6%) Virtual memory used by Lightroom: 5410.7 MB Memory cache size: 1166.2 MB 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: 2139MB / 3889MB (55%) Camera Raw real memory: -11990MB / 7778MB (-154%) System DPI setting: 192 DPI (high DPI mode) Desktop composition enabled: Yes Displays: 1) 2736x1824 Input types: Multitouch: Yes, Integrated touch: Yes, Integrated pen: Yes, External touch: No, External pen: No, Keyboard: Yes
Graphics Processor Info: DirectX: Intel(R) Iris(R) Plus Graphics (22.214.171.12421) Graphics Processor Detail: loaded: Yes, supported: Yes, compute: Yes, init: I3_GPU3, hard: success, soft: success, al: No, dl: No OS Media Capability: true