[Bug] Legend hide/show error with graph edgeLabel on geo map

[helgasoft]

Version

5.4.2

Link to Minimal Reproduction

LINK

Steps to Reproduce

click on legend button

Current Behavior

graph does not hide, but an error pops up in console

Expected Behavior

graph to become hidden

Environment

- OS: win 10
- Browser: Chrome
- Framework: none

Any additional comments?

this function pops TypeError: Cannot read properties of undefined (reading 'undefined')
"undefined" is usually an easy fix...