Arrow not working

[chinsenglow]

Issues:

1. Arrow not showing by default
2. After selecting from settings, arrow rendering is not reflecting as per selected

[AlexeyBoiko]

Judging by the screenshot, this is an old version. Is it from https://app.dgrm.net/ page?
Please try to clear browser cache.

[chinsenglow]

It is not from https://app.dgrm.net/ page, I tried this and the arrow is working fine.
I deployed and tried on the code from https://github.com/AlexeyBoiko/DgrmJS, the arrow is not working fine.