Visio Gantt export to Timeline goes wrong

[Alan Dods]

Hello

I am having problems exporting a Visio Gantt chart to a Timeline. I
have a simple dummy project with one summary task and four subordinate
tasks. The four subordinate tasks are all linked and of duration 2d
each.

The summary task has duration 8d and runs from 17th July to 28th July.

When I export to a timeline, leaving all default settings, the summary
task expands to 17th July to 1st August. Is there a way to avoid this
behaviour?

Thanks
Alan