Update: The patch 3.18.3 which fixes this bug has been released and is currently pending for approval in the respective App Stores.

An error has been identified in version 3.18.2 for native apps (iPhone, iPad, Mac, Android) that prevents values from being entered in an N:1 link field. Our development team is aware of this issue and is working on a fix as a matter of priority.

In the meantime, we apologize for the inconvenience and recommend that you do not update to 3.18.2 if you have not already done so.