Indeed, it is weird that the multiple selection is disabled on your. However, I am glad that the provided sample project works for you. Feel free to use it.
However, if it would be possible to provide the problematic project, it would be greatly appreciated since we will be able to further investigate what causes the undesired behavior on your. Thank you in advance.
Should you have further questions please let me know.
Dess | Tech Support Engineer, Sr.
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