Missing Component in Render

I have seen this one time before but here it is again. Randomly ignoring one of 4 components nested in another component.

Closing and restarting SketchUp did resolve it - but there is a bug in there somewhere.

Do you remember how you set up the 4 instances of this component? Is the initial one missing?
Issues like this usually occur when initializing the render process while in Edit Component mode.

Kind regards,
Peter

Yes, I do believe this was the initial one.

Please keep the progress window open (button is at the bottom-right corner of the VFB) and check for any warning/error messages next time you notice this bug! If it persists throughout a whole SketchUp session, check the Ruby console prior to starting the render process.
Linking it to a specific action would be helpful. So far suspects are redrawing axes, scaling components or editing their geometry while rendering.
Previous reports of similar issues have not been able to narrow down this sporadic behavior. Any additional details would be highly appreciated!