diff --git a/src/lib/react-remove-scroll-body-cleanup.ts b/src/lib/react-remove-scroll-body-cleanup.ts
new file mode 100644
index 00000000..00b5fd62
--- /dev/null
+++ b/src/lib/react-remove-scroll-body-cleanup.ts
@@ -0,0 +1,37 @@
+/**
+ * Radix `Dialog` wraps the overlay in `react-remove-scroll`, which adds `block-interactivity-*` on
+ * `document.body` so only dialog “shard” nodes receive pointer events. Programmatic overlays that
+ * mount on `document.body` (e.g. Bitcoin Connect `bc-modal`) are not shards; if they appear while
+ * that class is still present, the UI can paint on top but ignore all clicks (notably after closing
+ * our Zap dialog from a secondary pane / sheet).
+ */
+export function stripReactRemoveScrollBodyLocks(): void {
+  if (typeof document === 'undefined') return
+  const body = document.body
+  const toRemove: string[] = []
+  body.classList.forEach((c) => {
+    if (c.startsWith('block-interactivity-')) toRemove.push(c)
+  })
+  for (const c of toRemove) {
+    body.classList.remove(c)
+  }
+}
+
+/** Slightly longer than Radix dialog exit animation (`duration-200` in our `DialogContent`). */
+export const MS_AFTER_RADIX_DIALOG_FOR_EXTERNAL_MODAL = 280
+
+/**
+ * Call `closeOuterModel` (e.g. close Zap `Dialog`), wait for scroll-lock cleanup when applicable,
+ * strip any stuck `block-interactivity-*` on `body`, then run `fn` (typically `launchPaymentModal`).
+ */
+export function runAfterReleasingRadixScrollLock(
+  closeOuterModel: (() => void) | undefined,
+  fn: () => void
+): void {
+  closeOuterModel?.()
+  const ms = closeOuterModel != null ? MS_AFTER_RADIX_DIALOG_FOR_EXTERNAL_MODAL : 0
+  window.setTimeout(() => {
+    stripReactRemoveScrollBodyLocks()
+    fn()
+  }, ms)
+}
diff --git a/src/services/lightning.service.ts b/src/services/lightning.service.ts
index 180ac984..cf836cf4 100644
--- a/src/services/lightning.service.ts
+++ b/src/services/lightning.service.ts
@@ -20,6 +20,7 @@ import { queryService, replaceableEventService } from './client.service'
 import { getProfileFromEvent } from '@/lib/event-metadata'
 import { fetchWithTimeout } from '@/lib/fetch-with-timeout'
 import logger from '@/lib/logger'
+import { runAfterReleasingRadixScrollLock } from '@/lib/react-remove-scroll-body-cleanup'
 
 export type TRecentSupporter = { pubkey: string; amount: number; comment?: string }
 
@@ -103,10 +104,7 @@ class LightningService {
     }
 
     return new Promise((resolve) => {
-      // Close our Radix dialog first; opening bc-modal in the same turn can leave body
-      // pointer-events stuck so the payment UI is visible but inert (esp. from Sheet / secondary pane).
-      closeOuterModel?.()
-      window.setTimeout(() => {
+      runAfterReleasingRadixScrollLock(closeOuterModel, () => {
         let checkPaymentInterval: ReturnType<typeof setInterval> | undefined
         let subCloser: SubCloser | undefined
         const { setPaid } = launchPaymentModal({
@@ -158,7 +156,7 @@ class LightningService {
             }
           )
         }
-      }, 0)
+      })
     })
   }
 
@@ -231,8 +229,7 @@ class LightningService {
     }
 
     return new Promise((resolve) => {
-      closeOuterModel?.()
-      window.setTimeout(() => {
+      runAfterReleasingRadixScrollLock(closeOuterModel, () => {
         let checkPaymentInterval: ReturnType<typeof setInterval> | undefined
         let subCloser: SubCloser | undefined
         const { setPaid } = launchPaymentModal({
@@ -282,7 +279,7 @@ class LightningService {
             }
           )
         }
-      }, 0)
+      })
     })
   }
 
@@ -297,8 +294,7 @@ class LightningService {
     }
 
     return new Promise((resolve) => {
-      closeOuterModel?.()
-      window.setTimeout(() => {
+      runAfterReleasingRadixScrollLock(closeOuterModel, () => {
         launchPaymentModal({
           invoice: invoice,
           onPaid: (response) => {
@@ -308,7 +304,7 @@ class LightningService {
             resolve(null)
           }
         })
-      }, 0)
+      })
     })
   }