1. What is the problem? Be very detailed.
When a saved form has been edited and then saved, appears the message "...: Attempt
to get length of null array". I'm working with at least 75 different users and only one user has reported this problem twice.
2. What app or server are you using and on what device and operating system? Include version numbers.
I'm using Google App Engine and Collect v. 1.19
3. What you have you tried to fix the problem?
Reinstall the app collect.
4. What steps can we take to reproduce the problem?
The errors have occurred when using Vysor complement for chrome. Only 2 times not always.
5. Anything else we should know or have? If you have a test form or screenshots or logs, attach below.
