Latest 2.99.3 shudown on new doc

[PatLabGit]

The latest unstable/dev GIMP_AppImage-git-2.99.3-20201105-x86_64.AppImage just close/shutdown when I do File/New... Systematically (can be reproduced each time)
Putting back the GIMP_AppImage-git-2.99.3-20201029-x86_64.AppImage resolved the problem

Also i don't have the name on the sliders (see screen shot)

OS: Ubuntu 20.04.1 LTS x86_64
Kernel: 5.4.0-52-generic
Resolution: 1920x1080
DE: MATE
WM: Metacity (Marco)
WM Theme: Ambiant-MATE-Aqua
CPU: Intel i5-7400 (4) @ 3.500GHz
GPU: AMD ATI Radeon RX 580 2048SP
Memory: 5702MiB / 24015MiB