Device Dependencies - Dependency Map - Blank Screen

:/opt/librenms# ./validate.php

Component Version
LibreNMS 1.56-7-g51e5521d9
DB Schema 2019_08_28_105051_fix-template-linefeeds (143)
PHP 7.2.19-0ubuntu0.18.04.2
MySQL 10.1.41-MariaDB-0ubuntu0.18.04.1
RRDTool 1.7.0
SNMP NET-SNMP 5.7.3
====================================

[OK] Composer Version: 1.9.0
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
[FAIL] Some devices have not completed their polling run in 5 minutes

Hi All,

We use the DepMap plugin to map the configured device dependencies. I needed to update some today and it is useful for helping map out their relationships easily.

This appears to have stopped working. We just get a blank screen.

The network map still works.

I searched the forum for similar issues and found somebody had some trouble with Weather Map previously but this was fixed.

Their last comment seems to state that DepMap was still broken.

Can anybody offer any insight on how to fix this?

No idea but fixes are welcome to give Back to the community.