504 errors when trying to load workflow details

Hi FC team,

As of this morning, we are encountering 504 errors when trying to load workflow details in the FC portal.

Here is an example workflow where we encounter a 504:
https://portal.firecloud.org/#workspaces/talkowski-sv-gnomad-wgs-v2/SV_Talkowski_GNOMAD_WGS-V2/monitor/53a60272-80c0-4ccc-be49-5a9c1187fcf3/5d4230f8-1265-4cc9-a9fd-ea9a722f9d9c

The Loading workflow details... message pinwheels for about ~10 seconds before being replaced by a HTTP 2.0 / 504 message in red, after which a grey Server Unavailable banner is displayed at the top of the screen (but it only appears after the 504).

Let me know if there are any other details we can provide to help solve this issue.

Thanks,
Ryan