Autofilter problems

Some of my views autofilters are suddenly not working. Looks like there has been an update to Zoho creator in the past few weeks.

http://creator.zoho.com/pvandyck/hc_vol

I have shared the app with support.

The views are any of the of "Available..." views. In the autofilters, selecting by "Willing to help" options seems to work, selecting by teacher name causes the following error.

We are unable to fetch this data, sorry! Please note that your data is SAFE.
Report this problem to support [at] zohocreator [dot] com.

pvandyck