diff --git a/scripts/admin-test-env-acceptance.mjs b/scripts/admin-test-env-acceptance.mjs
index 78f082613..293371ddf 100644
--- a/scripts/admin-test-env-acceptance.mjs
+++ b/scripts/admin-test-env-acceptance.mjs
@@ -1448,10 +1448,11 @@ export class AcceptanceRun {
     this.context.orderFulfillmentType = fulfillmentType
     this.context.phase4ProducerMatrixMarker = matrixMarker
     try {
-      // Every cross-region producer later verifies that a PDA inventory snapshot is invalidated
-      // after a real, public A0 rebind.  Keep an isolated overflow occupancy for each variant;
-      // otherwise the OVERSEAS branch has only ordinary locations and cannot perform that check.
-      restoreFixture = await this.preparePhase3LoadingFixture('', true)
+      // Cross-region variants only need a normal completed loading chain. The destructive A0
+      // inventory-snapshot mutation is covered once by an explicitly requested phase3-loading
+      // run; repeating it for every producer is unsafe for a populated shared warehouse and can
+      // become impossible when the bounded isolation guard refuses bulk location mutations.
+      restoreFixture = await this.preparePhase3LoadingFixture('', false)
       const loading = await import(new URL('./admin-test-env-modules/phase3-loading.mjs', import.meta.url))
       await this.executeModule(`phase3-loading-phase4-${label}`, () => loading.run(this))
       const finalize = await import(new URL('./admin-test-env-modules/phase3-loading-finalize.mjs', import.meta.url))
diff --git a/scripts/admin-test-env-modules/phase4-cross-region-events-contract.test.mjs b/scripts/admin-test-env-modules/phase4-cross-region-events-contract.test.mjs
index ab099c736..d4cdf9d53 100644
--- a/scripts/admin-test-env-modules/phase4-cross-region-events-contract.test.mjs
+++ b/scripts/admin-test-env-modules/phase4-cross-region-events-contract.test.mjs
@@ -90,12 +90,12 @@ test('phase-four producer variants restore the primary orchestration fixture aft
   ]) assert.match(createdKeys, new RegExp(`'${key}'`))
 })
 
-test('every cross-region producer keeps an isolated A0 occupancy for PDA snapshot invalidation', async () => {
+test('cross-region producers do not repeat the destructive A0 snapshot mutation', async () => {
   const source = await import('node:fs/promises').then((fs) => fs.readFile(
     new URL('../admin-test-env-acceptance.mjs', import.meta.url), 'utf8'))
   const variantStart = source.indexOf('async runPhase4ProducerVariant')
   const fixtureCall = source.slice(variantStart, source.indexOf('const loading =', variantStart))
-  assert.match(fixtureCall, /preparePhase3LoadingFixture\('', true\)/)
+  assert.match(fixtureCall, /preparePhase3LoadingFixture\('', false\)/)
 })
 
 test('contract covers dual audience, canonical 403, both event directions and diagnostics', () => {