Description:
The reproduction document has two sections (named Section1 and Section2, respectively) inside the frame, one visible and one not visible. The UI calls that "hidden" but the actual property is "IsVisible" and the negation of the UI "hidden" checkbox.

The button launches a Basic procedure that toggles the visibility of the two sections. Correct behaviour ("the macro works correctly") is that the section visible before procedure execution is hidden, and the section hidden before procedure execution is visible. Incorrect behaviour is that one or both sections are not toggled.

For ease of observation, each section contains the text saying that that section is visible, and the Basic procedure checks whether the change it requested has been performed, and indicates success or failure in a pop-up MessageBox.

Steps to Reproduce:
1. Set Macro security to medium (or low)
2. Open reproduction document
3. Accept macro execution (if prompted, i.e. macro security is on medium)
4. Click button (repeatedly)
5. Select the frame
6. Cut (Cntrl-X)
7. Paste  (Cntrl-V)
8. Click button (once, repeatedly, ...)
9. save document
10. Use menu Format / Sections to see that the two sections are still there, and still have the same name, and its visibility can be successfully changed through the UI.
11. close document; do not save
12. open document again
13. Accept macro execution (if prompted, i.e. macro security is on medium)
14. Click button (repeatedly)


Actual Results:
At step 4, the macro works correctly.
At step 8, the macro doesn't work.
At step 14, the macro works correctly.

Expected Results:
The macro works at steps 4, 8 and 14.


Reproducible: Always


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
Debian-provided package
Version: 6.1.5.2
Build ID: 1:6.1.5-3
CPU threads: 8; OS: Linux 4.9; UI render: default; VCL: gtk3; 
Locale: en-GB (en_GB.utf8); Calc: group threaded