Oddities do seem to happen with Ancestry, I had one yesterday, on checking the latest DNA matches one stood out as it showed Common Ancestor but clicking on it brought up a totally different DNA match, there have been a few other minor issues like sticking searches and blank pages being loaded.
I am just putting it down to their September Syndrome as this does seem to be the month that they update their systems, it is also when the updates to their Ethnicity database occurs.
I may be wrong but as I am not currently subscribing to ProTools I cannot check my results out to see if the same problem exists.
Fingers crossed it is only temporary, a restart of your PC may also resolve issues.
If the issue still occurs checking for updates and then clearing the Windows Cache may help.