I am experiencing very bizarre2-finger trackpad scrolling behavior in grid-view on Lightroom on Windows. Iwill describe the behavior first, then give you the details/specs/etc.
In gridview, while hovering over the main center gridwindow, 2-finger trackpad scrolling is incredibly slow. I don't just mean slowas in an annoyance - I mean it's non-functional. Literally scrolls down afraction of a millimeter per each full swipe of the 2-finger scroll - it wouldtake you hours to scroll through 200 photos. Scrolling behaves normally in allother programs except for LR.
If I hover the cursor above the scrolling bar, behavioris completely normal - scrolls up and down at normal speed and length.
Depending on which panels I have open, sometimesscrolling vertically in the gridview actually scrolls the film strip at thebottom horizontally - regardless of the position of the mouse cursor, and evenwhen clicking back in the main gridview - it still scrolls only the film strip.
Here's a very strange work around I've discovered: If Ienable filters, and the filter panel at the top is large enough (say more than2-3 lines down), behavior is again completely normal. Scrolling behaves as youwould expect it to with the cursor over the main photos in gridview, andscrolling is fast and smooth. As soon as I set the filters to "None"(or shrink the panel to a smaller size, say less than 2 lines), trackpadscrolling immediately becomes unresponsive again.
Scrolling with the touch screen on my laptop behavescompletely normally.
When a mouse is connected, scrolling with a mouse wheelbehaves completely normally.
I have doneextensive Googling of this, and found at least a few people with the identicalbehavior, but no solution yet. From my observations, most of these people hadhigh-res touch-enabled laptops, so not sure if it's something to do with that.Since obviously not everyone is experiencing this issue, and also as per Item#6 above, I suspect it's some kind of incompatibility with the specific modelof trackpad and LR. Here's my specs: I am using Lightroom 6 (most updatedversion as of today) on Windows 10, on a 2016 i5 Dell XPS 13 (with QHDtouchscreen). All drivers are updated. I'm a long-time LR user, previously on aMac, and never experienced this issue before.
Updates for the Adobe Photography Products were released on 10.20.2020 that include fixes for these issues. Please install the most recent update and confirm that your issue is now fixed. Please let us know if you encounter any issues.