System Information
Operating system: Linux-4.18.0-21-generic-x86_64-with-debian-buster-sid 64 Bits (Verified crashing on Windows 10 as well)
Graphics card: Mesa DRI Intel(R) Haswell Mobile Intel Open Source Technology Center 4.5 (Core Profile) Mesa 18.2.8
Blender Version
Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-18 22:21, hash: rBfc182e318988
Worked: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-03 19:00, hash: rBd62a749fcf48
Short description of error
Blender crashes to desktop when an operator is called from a timer- ONLY on the second time the timer fires! This was not happening a couple of weeks ago (see last working version, I still have that build and the supplied script does not cause a crash)
Exact steps for others to reproduce the error
Run the attached python script. The first time the timer is triggered, it will work correctly- the second time it is triggered (10 seconds later) {F7268889}Blender will crash to desktop.
Edit: script and crash log attached for your convenience
import bpy def main(context): print("Crash will occur on the second timer trigger") class SimpleOperator(bpy.types.Operator): """Tooltip""" bl_idname = "object.simple_operator" bl_label = "Simple Object Operator" def execute(self, context): main(context) return {'FINISHED'} def test(): bpy.ops.object.simple_operator() return 10.0 def register(): bpy.utils.register_class(SimpleOperator) bpy.app.timers.register(test) def unregister(): bpy.utils.unregister_class(SimpleOperator) bpy.app.timers.unregister(test) if __name__ == "__main__": register()