Version 1.86 is like stone old. I don't know of any such problems if if this was a bug at all (which I doubt), then this should already be fixed.
You can test if this is fixed at the latest version by
testing our online Demo
which always runs the latest Limesurvey version.
If you can reproduce the problem there please report back.
Best regards/Beste Grüße,
Dr. Marcel Minke
(Limesurvey Head of Support) Need Help? We offer
professional Limesurvey support Contact: marcel.minke(at)survey-consulting.com'"