This is related to bug 119639, another combination of the visibility + printability setting: the shape is visible, but in its properties, 'Print object' is unchecked, thus it's not supposed to be printed. Sample: attachment 144601 [details]
Currently in Calc this property is ignored, because it's stored in a different place compared to the visibility setting, for some basic details, see bug 108691 comment 4 and bug 119639 comment 3. It seems the place where this setting is stored in the format has changed since older Excel versions.
I assume the setting isn't used often.
Observed using LO 6.2 master daily build (18-09-07), 3.3.0 / Windows 7.