"Service error" when using ContentSelector input type

Enonic version: 7.1.1
OS: Ubuntu 19.10

I have a simple input of type “ContentSelector” as shown in the image below.

Using input naturally, in the client environment, the following error has occurred:
“Service error: Maximum call stack size exceeded”, as shown in the image.

Unfortunately I have no further information under what circumstances the error happens. I tried to replicate in many different ways environments that could cause error and none of them was able to reproduce the error. My hope is that someone has already seen or has a clue what is going on.

This looks like something that we fixed in the last release of Content Studio. Can you try it out?

I will report this update for the client and then we can test. If the correction solves the situation I report for you. Thanks!