Registration to GBIF UAT failing

[PietrH]

We are on IPT v3.0.5 b3d11a2

I'm trying to publish a checklist to GBIF UAT via https://gbrds.gbif-uat.org but am getting an error upon registering:

It seems we are getting an empty response from the registry call:

DEBUG 02-Jul-2024 13:39:37 [org.gbif.utils.PreemptiveAuthenticationInterceptor] - GET /registry/network.json HTTP/1.1
DEBUG 02-Jul-2024 13:39:37 [org.gbif.ipt.action.manage.OverviewAction] - Loading EML from file: /home/lwatch/ipt-data/resources/negative-eventdates/eml-1.2.xml
DEBUG 02-Jul-2024 13:39:37 [org.gbif.ipt.action.manage.OverviewAction] - Loading EML from file: /home/lwatch/ipt-data/resources/negative-eventdates/eml-1.2.xml
DEBUG 02-Jul-2024 13:39:37 [org.gbif.ipt.action.manage.OverviewAction] - Checking if license (URL=http://creativecommons.org/licenses/by-nc/4.0/legalcode) is supported by GBIF..
DEBUG 02-Jul-2024 13:39:37 [org.gbif.ipt.action.manage.OverviewAction] - Loading EML from file: /home/lwatch/ipt-data/resources/negative-eventdates/eml-1.2.xml
DEBUG 02-Jul-2024 13:39:37 [org.gbif.ipt.action.manage.OverviewAction] - Checking if license (URL=http://creativecommons.org/licenses/by-nc/4.0/legalcode) is supported by GBIF..
DEBUG 02-Jul-2024 13:39:47 [org.gbif.utils.PreemptiveAuthenticationInterceptor] - GET /registry/network.json HTTP/1.1
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.service.registry.impl.RegistryManagerImpl] - Registering resource...
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.service.registry.impl.RegistryManagerImpl] - Loading EML from file: /home/lwatch/ipt-data/resources/negative-eventdates/eml-1.2.xml
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.service.registry.impl.RegistryManagerImpl] - Registering EML & DwC-A Checklist Service
DEBUG 02-Jul-2024 13:39:47 [org.gbif.utils.PreemptiveAuthenticationInterceptor] - POST /registry/ipt/resource HTTP/1.1
DEBUG 02-Jul-2024 13:39:47 [org.gbif.utils.PreemptiveAuthenticationInterceptor] - Authentication used for scope gbrds.gbif-uat.org
ERROR 02-Jul-2024 13:39:47 [org.gbif.ipt.action.manage.OverviewAction] - The response from the Registry was empty or invalid. [https://gbrds.gbif-uat.org/registry/ipt/resource]
ERROR 02-Jul-2024 13:39:47 [org.gbif.ipt.action.manage.OverviewAction] - Registration of resource failed!
DEBUG 02-Jul-2024 13:39:47 [org.gbif.utils.PreemptiveAuthenticationInterceptor] - GET /registry/network.json HTTP/1.1
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.action.manage.OverviewAction] - Loading EML from file: /home/lwatch/ipt-data/resources/negative-eventdates/eml-1.2.xml
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.action.manage.OverviewAction] - Loading EML from file: /home/lwatch/ipt-data/resources/negative-eventdates/eml-1.2.xml
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.action.manage.OverviewAction] - Checking if license (URL=http://creativecommons.org/licenses/by-nc/4.0/legalcode) is supported by GBIF..
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.action.manage.OverviewAction] - Loading EML from file: /home/lwatch/ipt-data/resources/negative-eventdates/eml-1.2.xml
DEBUG 02-Jul-2024 13:39:47 [org.gbif.ipt.action.manage.OverviewAction] - Checking if license (URL=http://creativecommons.org/licenses/by-nc/4.0/legalcode) is supported by GBIF..

This is the dataset I'm trying to register: https://ipt-dev.inbo.be/resource?r=negative-eventdates

I was in communication with @MattBlissett about this over slack, this is related to a mapping question of @sannegovaert regarding negative eventDates