I’ve done more testing. And there is some serious functionality issues with NextGen Gallery. The latest version 1.9.6 anyhow.
I tagged 5 different photos in a gallery, each with different tags:
Photo 1 was tagged with “test1”.
Photo 2 was tagged with “test2”.
Photo 3 was tagged with “test3”.
Photo 4 was tagged with “test4”.
Photo 5 was tagged with “test5”.
In a new post I put the following:
[nggtags gallery=test1]
[nggtags gallery=test2]
[nggtags gallery=test3]
[nggtags gallery=test4]
[nggtags gallery=test5]
Result: Only the last two photos (tagged “test4” and “test5”) show up in the post.
In addition to this, no photos with spaces in the tag will appear. (e.g. [nggtags gallery=”please work”]). This DID work in NGG version 1.9.3.