This is a reproducible bug and has been around since forever.
I just want to bring it to the attention of the Sketchup development team.
Basically, if there is a model with large number of faces within a group (or component), and that group is opened and paint bucket is used to change the colour area, Sketchup will crash, always without a bugsplat, and usually without writing into the event log.
In the very rare occasion that it did write something to the event log, here are the details:
Faulting application name: SketchUp.exe, version: 17.2.2555.0, time stamp: 0x589cee5d
Faulting module name: KERNELBASE.dll, version: 10.0.15063.0, time stamp: 0x461a0ff5
Exception code: 0xc0000005
Fault offset: 0x000000000004aa7c
Workaround: Explode the group or component and it paints correctly.
Other related into: Tested with model containing 5096 faces, that works.
Tested with model containing 10268 faces, and Sketchup will crash.
The attached model contains 14260 faces, and will crash.
Sphere.skp (2.3 MB)
Sketchup Make 64-bit on Windows 10. 32GB RAM.
Earlier versions (32-bit) on Windows 7 did the same thing.