Astroprint Plugin - Sending Print Stuck at 97%

Entire octopi setup last re-done an hour ago on a 3B+, for an Ender 3 Pro. Tried a fresh build again, only installing this plugin, and the same result. Can be reproduced every time. Tried from IE, Edge, and Firefox. Restarted between and after every install as well.

Any ideas what may be causing this?

Issue:
Sending prints to OctoPrint stall at 97% on the Web UI.

Observations:
w4spy package gets a connection refused on the first attempt of installing the plugin, but completes successfully. Uninstalling the plugin and re-installing it, shows the plugin as “satisfied”. Print is sent to Octopi, and starts. Controls from OctoPi work as well.

Versions:
Printer - Ender 3 Pro
Marlin - U2.R1.15a
OctoPi - 0.17.0
OctoPrint - 1.3.12
AstroPrint - 1.3.6

Same here, one of the problems I have since a couple of days.

Please open support tickets for this abs provide octoprint logs. We can investigate