Odd one... when I move the mouse up the screen in Calc, once it gets to the cell edit box if I move the mouse slowly above the edit box control, the mouse "jumps" to the bottom of the edit control and the cursor changes to the resize cursor image. If I move my mouse very quickly, then I can move upwards. I honestly thought my mouse was playing up, I was going insane, squinting at the mousepad, blowing on the light sensor to remove imaginary hairs, etc. Happening on Ubuntu Zesty 17.04. Version: 5.3.1.2 Build ID: 1:5.3.1-0ubuntu2 CPU Threads: 8; OS Version: Linux 4.10; UI Render: default; VCL: gtk3; Layout Engine: new; Locale: en-AU (en_AU.UTF-8); Calc: group
LO ppa contains 5.4.0rc3, could you give it a try? (on pc debian x86-64 with master sources updated today + gtk3 rendering I don't reproduce this).
No longer an issue in latest release.