diff --git a/src/validation.cpp b/src/validation.cpp
index fbb178b2eadb..1c20b724ca3e 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2302,19 +2302,17 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl
         for (const auto& tx : block.vtx) {
             // skip txes that have no inputs
             if (tx->vin.empty()) continue;
-            llmq::CInstantSendLockPtr conflictLock = llmq::quorumInstantSendManager->GetConflictingLock(*tx);
-            if (!conflictLock) {
-                continue;
-            }
-            if (llmq::chainLocksHandler->HasChainLock(pindex->nHeight, pindex->GetBlockHash())) {
-                LogPrint(BCLog::ALL, "ConnectBlock(DASH): chain-locked transaction %s overrides islock %s\n", tx->GetHash().ToString(), ::SerializeHash(*conflictLock).ToString());
-                llmq::quorumInstantSendManager->RemoveConflictingLock(::SerializeHash(*conflictLock), *conflictLock);
-                assert(llmq::quorumInstantSendManager->GetConflictingLock(*tx) == nullptr);
-            } else {
-                // The node which relayed this should switch to correct chain.
-                // TODO: relay instantsend data/proof.
-                return state.DoS(10, error("ConnectBlock(DASH): transaction %s conflicts with transaction lock %s", tx->GetHash().ToString(), conflictLock->txid.ToString()),
-                                 REJECT_INVALID, "conflict-tx-lock");
+            while (llmq::CInstantSendLockPtr conflictLock = llmq::quorumInstantSendManager->GetConflictingLock(*tx)) {
+                if (llmq::chainLocksHandler->HasChainLock(pindex->nHeight, pindex->GetBlockHash())) {
+                    LogPrint(BCLog::ALL, "ConnectBlock(DASH): chain-locked transaction %s overrides islock %s\n",
+                            tx->GetHash().ToString(), ::SerializeHash(*conflictLock).ToString());
+                    llmq::quorumInstantSendManager->RemoveConflictingLock(::SerializeHash(*conflictLock), *conflictLock);
+                } else {
+                    // The node which relayed this should switch to correct chain.
+                    // TODO: relay instantsend data/proof.
+                    return state.DoS(10, error("ConnectBlock(DASH): transaction %s conflicts with transaction lock %s",
+                            tx->GetHash().ToString(), conflictLock->txid.ToString()), REJECT_INVALID, "conflict-tx-lock");
+                }
             }
         }
     }