Thanks Sergiu, I will give that a shot (removing that configuration item I mean).
I actually managed to replicate some of the weird symptoms locally. It required me to set up a local mongo replica set. (I used podman, so let me know if you need the steps I followed to do this). The first time I ran sling against my local database it worked, but after running the second time it froze up before our bundle could even come up. I did see a lot of entries like these, where it seems to registering and subsequently unregistering the same service(s) multiple times: [PANTHEON] 16:21:00.907 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,953, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:00.909 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,954, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:00.911 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,951, [com.redhat.pantheon.extension.Events]] ServiceEvent REGISTERED [PANTHEON] 16:21:00.966 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,953, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:00.969 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,954, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:00.971 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,951, [com.redhat.pantheon.extension.Events]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:01.202 INFO c.r.p.c.GlobalConfig - Initializing template directories at /tmp/templates3435596101097019968 [PANTHEON] 16:21:01.212 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1002, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:01.214 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1003, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:01.215 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1001, [com.redhat.pantheon.extension.Events]] ServiceEvent REGISTERED [PANTHEON] 16:21:01.570 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1002, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:01.571 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1003, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:01.573 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1001, [com.redhat.pantheon.extension.Events]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:01.799 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1101, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:01.801 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1102, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:01.802 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1100, [com.redhat.pantheon.extension.Events]] ServiceEvent REGISTERED [PANTHEON] 16:21:02.213 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1101, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:02.215 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1102, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:02.216 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1100, [com.redhat.pantheon.extension.Events]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:02.438 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1206, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:02.440 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1207, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:02.441 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1205, [com.redhat.pantheon.extension.Events]] ServiceEvent REGISTERED [PANTHEON] 16:21:02.676 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1206, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:02.678 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1207, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:02.679 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1205, [com.redhat.pantheon.extension.Events]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:02.922 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1305, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:02.924 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1306, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:02.925 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1304, [com.redhat.pantheon.extension.Events]] ServiceEvent REGISTERED [PANTHEON] 16:21:03.232 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1305, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:03.233 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1306, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:03.234 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1304, [com.redhat.pantheon.extension.Events]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:03.462 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1404, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:03.463 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1405, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent REGISTERED [PANTHEON] 16:21:03.465 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1403, [com.redhat.pantheon.extension.Events]] ServiceEvent REGISTERED [PANTHEON] 16:21:03.755 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.PublishDraftVersion,1404, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:03.757 INFO c.r.pantheon - Service [com.redhat.pantheon.servlet.module.UnpublishVersion,1405, [org.apache.sling.servlets.post.PostOperation]] ServiceEvent UNREGISTERING [PANTHEON] 16:21:03.758 INFO c.r.pantheon - Service [com.redhat.pantheon.extension.Events,1403, [com.redhat.pantheon.extension.Events]] ServiceEvent UNREGISTERING