PeriodO Client not accepting all the changes made to an existing authority

[ylan1]

A couple of weeks ago, I tried to make two changes (stop date and adding alternative labels) to the authority record (http://n2t.net/ark:/99152/p0wf3wdnm6q).
After submitting the changes, I noticed that only the alternative label field was updated, and the stop date reverted to the original, incorrect value. I tested twice, and the result was the same.

Before submitting

After submitting

Last week, I separately submitted the stop date change that did not work the first time, and it seems to have worked. So I assume that the Client currently is only accepting one field change.