liwen216

I think I figure out why.

The wp-db.php is changed, and the automatic upgrade does not seem to update this file. Maybe because I have modified this on my own.
After cleaning up this file, and upload the new one, the tags could be added now.

Conclusion:
I’d better upgrade on my own instead of using the automatic upgrade.

I got the same problem.
Is this solved yet?

After more tries, I just get more confused.
Sometimes the tag could be added, but sometimes not.
Using commas to separate tags doesn’t work – Tags are gone after saving
Adding tags individually sometimes work – Still trying to find the pattern

Any idea ?