diff --git a/docs/releases/v2.12.3.md b/docs/releases/v2.12.3.md
index fb6c01665023d1ff49eaa3aeedba5f70a56a03ca..75da7002c5e96e121272ae3c172cbe3b20acb089 100644
--- a/docs/releases/v2.12.3.md
+++ b/docs/releases/v2.12.3.md
@@ -4,3 +4,5 @@
 
 - Visually distinguish regions that are mapped in a space to those that are not
 - Remove experimental flag to VOI
+- siibra-explorer now displays description and doi for more regions correctly (Julich Brain 3.0 in all MRI spaces and Julich Brain detailed maps in Big Brain spaces)
+- Do not display connectivity in big brain space
diff --git a/src/atlasComponents/sapi/sapi.service.ts b/src/atlasComponents/sapi/sapi.service.ts
index 1faa428f1354027d9f758b934e70514a49f8267e..0b8323001c2201d06894f90e3d43e0c7412c0c85 100644
--- a/src/atlasComponents/sapi/sapi.service.ts
+++ b/src/atlasComponents/sapi/sapi.service.ts
@@ -22,7 +22,7 @@ export const useViewer = {
 } as const
 
 export const SIIBRA_API_VERSION_HEADER_KEY='x-siibra-api-version'
-export const EXPECTED_SIIBRA_API_VERSION = '0.3.10'
+export const EXPECTED_SIIBRA_API_VERSION = '0.3.11'
 
 let BS_ENDPOINT_CACHED_VALUE: Observable<string> = null
 
diff --git a/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.component.ts b/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.component.ts
index c61d33b9d2c25cd406383ed85cc437f6364748ca..d774b1e05f61c2ebe3a4f676d6464417626b4cdd 100644
--- a/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.component.ts
+++ b/src/atlasComponents/sapiViews/core/region/region/rich/region.rich.component.ts
@@ -6,7 +6,7 @@ import { ARIA_LABELS, CONST } from 'common/constants'
 import { Feature } from "src/atlasComponents/sapi/sxplrTypes";
 import { SAPI } from "src/atlasComponents/sapi/sapi.service";
 import { environment } from "src/environments/environment";
-import { map, shareReplay, switchMap } from "rxjs/operators";
+import { catchError, map, shareReplay, switchMap } from "rxjs/operators";
 import { PathReturn } from "src/atlasComponents/sapi/typeV3";
 
 @Component({
@@ -41,7 +41,7 @@ export class SapiViewsCoreRegionRegionRich extends SapiViewsCoreRegionRegionBase
 
   activePanelTitles$: Observable<string[]> = new Subject()
 
-  private regionalStatisticalMaps$ = this.ATPR$.pipe(
+  private regionalMaps$ = this.ATPR$.pipe(
     switchMap(({ parcellation, template, region }) =>
       concat(
         of([] as PathReturn<"/map">["volumes"]),
@@ -49,14 +49,26 @@ export class SapiViewsCoreRegionRegionRich extends SapiViewsCoreRegionRegionBase
           map(v => {
             const mapIndices = v.indices[region.name]
             return mapIndices.map(mapIdx => v.volumes[mapIdx.volume])
+          }),
+          catchError((_err, _obs) => {
+            /**
+             * if statistical map somehow fails to fetch (e.g. does not exist for this combination 
+             * of parc tmpl), fallback to labelled map
+             */
+            return this.sapi.getMap(parcellation.id, template.id, "LABELLED").pipe(
+              map(v => {
+                const mapIndices = v.indices[region.name]
+                return mapIndices.map(mapIdx => v.volumes[mapIdx.volume])
+              })
+            )
           })
-        )
+        ),
       )
     ),
     shareReplay(1)
   )
 
-  public dois$ = this.regionalStatisticalMaps$.pipe(
+  public dois$ = this.regionalMaps$.pipe(
     map(sms => {
       const returnUrls: string[] = []
       for (const sm of sms) {
@@ -71,7 +83,7 @@ export class SapiViewsCoreRegionRegionRich extends SapiViewsCoreRegionRegionBase
     })
   )
 
-  public desc$ = this.regionalStatisticalMaps$.pipe(
+  public desc$ = this.regionalMaps$.pipe(
     map(sm => {
       for (const ds of (sm?.[0]?.datasets) || []) {
         if (ds.description) {
diff --git a/src/features/entry/entry.component.ts b/src/features/entry/entry.component.ts
index e4cfbe75e126083681838c1fe815bca654737345..581b34e0009b0a27479a86ec302d74319a86513a 100644
--- a/src/features/entry/entry.component.ts
+++ b/src/features/entry/entry.component.ts
@@ -152,7 +152,7 @@ export class EntryComponent extends FeatureBase implements AfterViewInit, OnDest
       map(atlas => atlas?.species === SPECIES_ENUM.HOMO_SAPIENS || atlas?.species === SPECIES_ENUM.RATTUS_NORVEGICUS)
     ),
     this.TPRBbox$.pipe(
-      map(({ parcellation }) => parcellation?.id === IDS.PARCELLATION.JBA29 || parcellation?.id === IDS.PARCELLATION.WAXHOLMV4)
+      map(({ parcellation, template }) => template.id !== IDS.TEMPLATES.BIG_BRAIN && parcellation?.id === IDS.PARCELLATION.JBA29 || parcellation?.id === IDS.PARCELLATION.WAXHOLMV4)
     )
   ]).pipe(
     map(flags => flags.every(f => f))