Coot view snapping back to origin of drag when translating view (Mac, trackpad)

[olibclarke]

Hi Paul,

Using Coot 1.1.19 (CCP4) on Mac OS 15.7.3 (Sequoia), Macbook pro with trackpad.

In order to translate the view, I use ctrl-left-click-drag. This normally works fine, except if I release the ctrl key before releasing the left click. In that case, the view snaps back to somewhere near (?) the origin of the drag, which is somewhat disconcerting/disorienting, and does not happen when performing the same operation using Coot 0.9.x.

I haven't tested whether this also happens when using a mouse.

See screen recording here (second half of recording shows the issue, first half is normal translation behavior):

https://www.dropbox.com/scl/fi/2wccjjuq2euod00kz2x7c/coot_jerky.mov?rlkey=6zwrei4rr0jvk4moiu85gh1at&dl=0

Cheers
Oli