At first, please save the URL of the page on Nucleotide Sequence Submission System.
Then, shutdown the browser and reopen the saved URL.
When your sequences are relatively many, it is likely to resolve the condition.
If you still have any problem, please contact us with followings from contact form by selecting the item, "DDBJ Nucleotide Sequence Submission System".
- Number of your sequences
- OS: Windows, MacOSX, or Linux, and its version
- Browser: software and its version