Have you tried resetting the preferences? If not, then follow the instructions for Method 1  in below linked Adobe Help document. ... View more

You'll need to follow the instructions for offline install/activation provided by @kglad  in below linked thread   https://community.adobe.com/t5/download-install-discussions/lightroom-6-on-a-new-pc/m-p/14638713#M580921 ... View more

@Holten    Start a new thread and ensure that you provide more details on the version of LrD you're using. Likewise, the operating system. Better stiil, provide a copy of your System Info. This can be obtained from the LrC HelP > System Info menu item. ... View more

@F. McLion    The OP resolved the issue by cleaning the dust from inside the computer, thus allowing the fans to properly cool the CPU/GPU.   ... View more

Did you look at this thread https://community.adobe.com/t5/camera-raw-discussions/p-technology-preview-reflection-removal-cr/td-p/14963699   If not, then please do so as it may contain helpful information. It would also be helpful if you would provide a screesnhot showing the aberrations.   Note that I'm changing the title of your thread to include 'Reflection Removal'. Your post may also be merged with above thread. ... View more

You'll need to use the off-line install and activation procedure described by 'kglad' in below linked thread   https://community.adobe.com/t5/download-install-discussions/lightroom-6-on-a-new-pc/m-p/14638713#M580921 ... View more

> Dedicated GPU memory used by Lightroom: 362,2MB / 1999,2MB (18%) Your GPU is based on hardware first released in 2014. Furthermore, it has insuficient memory to meet the minimum requirements for AI Denoise.   ... View more

Edit Time is the last time the image was edited ... View more

You need to select the import preset that you want to delete, then choose the delete option. See attached screenshot for Import Presets menu options.   ... View more

You can delete the blank shortcut, then make a new one. ... View more

Have you contacted vendor support for 'PhotoSweeper' to check whether they have any suggestions? ... View more

Have you tried resetting the LrC preference file? If not, then please try it. The procedure is set out in Method 1 at below linked Adobe Help document.   You should also check to see whether there is file ending 'lrcat.lock'. If you find such a file, then delete it and try restarting LrC again.   https://helpx.adobe.com/lightroom-classic/help/reset-preferences.html ... View more

Have you tried signing out then back into your account? ... View more

Are  you using the computer whilst the previews are being built? ... View more

@Docj0nes  I have merged you post into the thread on 'Ideas' forum that is requesting native support for Arm based Windows computers.   You should also 'Upvote' the threaad. ... View more

I believe the reference to 'photos have uploaded in the wrong order' relates to the screenshots. ... View more

Have you tried moving the LrC window to check that the Export dialog isn't hidden behind it? ... View more

Try resetting the LrC Preference file using Method 1 described in below linked Adobe Help document.   https://helpx.adobe.com/lightroom-classic/help/reset-preferences.html ... View more

Please post a copy of LrC's 'System Info'. You can obtain this from the LrC Help > System Info menu item. Note that there's a 'Copy' button in the System Info dialog. Use this button to capture the info, then Paste into your next reply. ... View more

I forgot to mention that enabling 'Embed Fast Load Data' preference as you'll then get best performance in the Develop module. It also means the Camera Raw cache size, etc is irrelevent as this preference embeds the cache files within the DNG itself. ... View more

So long as LrC DNG and the DNG Converter preferences match, then the methods of converting to DNG that you described will produce identical files.     ... View more

Have you tried resetting the LrC preferences as described in Method 1 at below linked Adobe Help document?   https://helpx.adobe.com/lightroom-classic/help/reset-preferences.html ... View more

I marked your self reply as the 'Correct answer' as it may help others experiencing the same issue. ... View more

To install Lr6 on your new computer, you'll need to usee the off-line activation procedure described by kglad in below thread link. Unfortunately, I can't help regarding PSE.   https://community.adobe.com/t5/download-install-discussions/lightroom-6-on-a-new-pc/m-p/14638713#M580921 ... View more

The file being renamed to append -2 suggests that the PSD has already been imported/synced. Besk that you check that the PSD files created when you saved them in Photoshop are not being stacked with original raw file. ... View more

Lightroom Classic edits are non destructive. You can reset any edit or all edits any time you choose. If you choose full reset, then file will return to its original state.   Is there any harm in always having the Remove Chromatic Aberration turned on for all photos?   No. It's really up to the user to decide whether they believe that CA correction is applicable or not. In some cases it may not be and in others it may be necessary.   Is there any harm in doing like I said above about having a Gradient mask covering the whole photo if there is purple fringing and then using the masking Defringe control?  Is there any downside to doing it this way?   No to both questions. If the results on a particular image are to your taste, then use the approach you describe. If not, then just reset the adustment or step back in history. ... View more

Have you tried resetting the LrC preference file? The procedure is described in Method 1 at below link to Adobe Help document.   https://helpx.adobe.com/lightroom-classic/help/reset-preferences.html ... View more

I can't reproduce on Mac (macOS Sequoia) with export to use 720p and 1080p presets using Auto and Manual modes.    If you haven't already tried resetting the LrC preference file, then it's always worth a try. The procedure is set out in Method 1 at below linked Help document.   https://helpx.adobe.com/lightroom-classic/help/reset-preferences.html   If resetting preferences doesn't help, then you'll need to provide more information regarding the slideshow setting you're using and your choice for the export preset.   ... View more

The error message means that LrC believes that Smart Shooter 4 is still installed on your computer.  ... View more