P: Custom Order lost with slight accidental movement of thumbnail in filmstrip

Yup - it's bizarre the way it currently works. I've gotten used to it and know, almost every time when LR is going to change to custom order when I don't want it to. Yesterday, I highlighted 6 photos and I saw, in the split second that my hand shifted to the right(too much coffee). I then thought to check the sort order and lo and behold, it was changed to custom, so I changed it back to capture time.

"the sort should only change when the thumbnail in the film strip is completely moved to a new position"

That's a good idea.

Seems a very sensible way forward and should be simple for Adobe to implement

I think the problem is two fold....the sort is changed if long clicked with the slightest of drag, and there is something else going on that isn't easily seen. First thing Adobe should do is remove the long click problem, the sort should only change when the thumbnail in the film strip is completely moved to a new position. This would at least allow a clearer view of the other problem without spurious mouse/pen clicks etc etc.

Have you tried testing in conjunction with a Wacom tablet to see if this is a factor to eliminate John ??  I have never used a mouse (pointing device), and always used a Wacom (and trackpad) when working in LR.  I have no other way of pointing on my iMac.
For information, the issue has now become a lot worse - the thumbnail order now changes order, away from Capture Time, constantly.  Every time I check, and it can be every few minutes, the order has changed.  There is certainly something bizarre with this situation (and very inconvenient / frustrating)

Did you have the Logitech utility installed? The bug may not be specific to any one device, but it may be provoked by third-party pointing-device drivers and utilities.

It's funny that two Adobe employees can't reproduce the problem, while so many others have been suffering it for so long time. I don't remember when this problem started to appear, it's been a long time. But it has nothing to do with the pointer device. Recently switched to Wacom tablet from Logitech mouse, it still exists.

However, I found if you let the LR to load all the thumbnails first, then the problem will not occur.

ah well many thanks for your help 🙂

Unfortunately not. And the sort order isn't exposed to plugins, so it isn't possible to write a plugin that would change the order back automatically.

Is there any way of 'locking' the sort function into Capture Time mode?