Spreadsheet list created with "xx : xx" does not remain to reopen the file
Solved
(GeoGebra 5.0.263.0, Windows 10)
For example, if you do:
A1=1
A2=1
list = A1:A2
And then save and close the file, when you open it again, the list has disappeared.
(There is no problem with lists already saved in old files and lists created otherwise.)
Rafa
The same problem 
Thanks, fixed for next release.
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