Magister authentication no longer working?

[clrxbl]

Getting the following error upon trying to run the program:
magister-calendar_1 | [!] 21:20:41 Could not login to magister: "Invalid username"

Seems to be occurring ever since the new Magister authentication page. (or 1 - 2 days ago, could've sworn to see some Pushover notifications even with the new Magister page)
@jvdoorn I know you fixed some issues months ago and I noticed you've recently worked on MagisterJS, would you be so kind and take a look at this?

[clrxbl]

Actually looks like it was a temporary issue.

[clrxbl]

It did end up working a few times, but I'm still getting the same error so the issue is still relevant.

[UniFuseStudios]

It did end up working a few times, but I'm still getting the same error so the issue is still relevant.

I am actually having the same issue. Could anyone help?