I have a dual monitor setup, and since the latest update, the 2nd monitor no longer shows the correct crop until after I have applied the crop. The second monitor view is set to Loupe, Normal, but it doesn't make any difference if I use any other combination of settings either.
Lightroom Classic Version 10.0 release.
Win 10 Pro 32Gb Ram NVIDIA GeForce CTX970 i7-5820K CPU @ 3301 Mhz, 6 Cores
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.
Thanks BTW, I have experimented with hardware acceleration off and on, but no difference. What isn't in the system info is that my images are on a Synology NAS via a Gigabit network switch
Lightroom Classic version: 10.0 [ 202010011851-ef6045e0 ] License: Creative Cloud Language setting: en Operating system: Windows 10 - Business Edition Version: 10.0.18363 Application architecture: x64 System architecture: x64 Logical processor count: 12 Processor speed: 3.3 GHz SqLite Version: 3.30.1 Built-in memory: 32668.1 MB Real memory available to Lightroom: 32668.1 MB Real memory used by Lightroom: 2973.7 MB (9.1%) Virtual memory used by Lightroom: 4323.7 MB GDI objects count: 699 USER objects count: 2506 Process handles count: 1978 Memory cache size: 19.8MB Internal Camera Raw version: 13.0 [ 610 ] Maximum thread count used by Camera Raw: 5 Camera Raw SIMD optimization: SSE2,AVX,AVX2 Camera Raw virtual memory: 1621MB / 16334MB (9%) Camera Raw real memory: 2276MB / 32668MB (6%) System DPI setting: 96 DPI Desktop composition enabled: Yes Displays: 1) 2560x1440, 2) 2560x1440 Input types: Multitouch: No, Integrated touch: No, Integrated pen: Yes, External touch: No, External pen: Yes, Keyboard: No