diff --git a/iguana/iguana777.c b/iguana/iguana777.c
index dfb5d7359..a321ed09a 100755
--- a/iguana/iguana777.c
+++ b/iguana/iguana777.c
@@ -600,7 +600,7 @@ void iguana_helper(void *arg)
         //portable_mutex_lock(&myinfo->allcoins_mutex);
         HASH_ITER(hh,myinfo->allcoins,coin,tmp)
         {
-            if ( coin->spendvectorsaved == 1 )
+            if ( coin->spendvectorsaved == 1 && coin->firstRTheight == 0 )
                 iguana_utxogen(myinfo,coin,helperid,0);
             else if ( coin->spendvectorsaved > 1 && (coin->spendvalidated & (1 << helperid)) == 0 )
             {
diff --git a/iguana/iguana_bundles.c b/iguana/iguana_bundles.c
index c5a91f379..8e9aa6a42 100755
--- a/iguana/iguana_bundles.c
+++ b/iguana/iguana_bundles.c
@@ -218,7 +218,7 @@ int32_t iguana_bundlehash2add(struct iguana_info *coin,struct iguana_block **blo
             }
             else
             {
-                if ( coin->RTheight > 0 && bp->bundleheight+bundlei > coin->firstRTheight )
+                //if ( coin->RTheight > 0 && bp->bundleheight+bundlei > coin->firstRTheight )
                 {
                     if ( bundlei > 1 )
                         bundlei -= 2;
@@ -229,7 +229,8 @@ int32_t iguana_bundlehash2add(struct iguana_info *coin,struct iguana_block **blo
                         return(-1);
                     } //else printf("couldnt find block at %d\n",bp->bundleheight+bundlei);
                 }
-                else if ( bundlei > 0 )
+                //else if ( bundlei > 0 )
+                if ( bp->blocks[bundlei] != 0 )
                 {
                     printf("bp.[%d]->blocks[%d] mismatch %p != %p\n",bp->hdrsi,bundlei,bp->blocks[bundlei],block);
                     bp->blocks[bundlei] = 0;
diff --git a/iguana/iguana_recv.c b/iguana/iguana_recv.c
index 79e8265e9..59f12848c 100755
--- a/iguana/iguana_recv.c
+++ b/iguana/iguana_recv.c
@@ -503,20 +503,23 @@ void iguana_gotblockM(struct iguana_info *coin,struct iguana_peer *addr,struct i
             }*/
         } //else printf("cant save block\n");
     }
-    numtx = origtxdata->zblock.RO.txn_count;
-    iguana_RTrawdata(coin,txdata->zblock.RO.hash2,data,&recvlen,&numtx,0);
-    req->zblock = txdata->zblock;
-    if ( coin->virtualchain != 0 )
-        printf("%s recvlen.%d ipbits.%x prev.(%s)\n",coin->symbol,req->zblock.RO.recvlen,req->zblock.fpipbits,bits256_str(str,txdata->zblock.RO.prev_block));
-    req->zblock.RO.txn_count = req->numtx = txdata->zblock.RO.txn_count;
-    if ( fromcache == 0 )
-    {
-        coin->recvcount++;
-        coin->recvtime = (uint32_t)time(NULL);
-        netBLOCKS++;
+    if ( txdata->zblock.fpos == 0 )
+    {
+        numtx = origtxdata->zblock.RO.txn_count;
+        iguana_RTrawdata(coin,txdata->zblock.RO.hash2,data,&recvlen,&numtx,0);
+        req->zblock = txdata->zblock;
+        if ( coin->virtualchain != 0 )
+            printf("%s recvlen.%d ipbits.%x prev.(%s)\n",coin->symbol,req->zblock.RO.recvlen,req->zblock.fpipbits,bits256_str(str,txdata->zblock.RO.prev_block));
+        req->zblock.RO.txn_count = req->numtx = txdata->zblock.RO.txn_count;
+        if ( fromcache == 0 )
+        {
+            coin->recvcount++;
+            coin->recvtime = (uint32_t)time(NULL);
+            netBLOCKS++;
+        }
+        req->addr = addr;
+        queue_enqueue("recvQ",&coin->recvQ,&req->DL,0);
     }
-    req->addr = addr;
-    queue_enqueue("recvQ",&coin->recvQ,&req->DL,0);
 }
 
 void iguana_gottxidsM(struct iguana_info *coin,struct iguana_peer *addr,bits256 *txids,int32_t n)
diff --git a/iguana/iguana_unspents.c b/iguana/iguana_unspents.c
index 646f6d0d9..2d3ae0d42 100755
--- a/iguana/iguana_unspents.c
+++ b/iguana/iguana_unspents.c
@@ -1185,7 +1185,7 @@ int64_t iguana_utxoaddr_gen(struct supernet_info *myinfo,struct iguana_info *coi
         if ( strcmp("BTC",coin->symbol) != 0 )
             errs = iguana_utxoaddr_validate(myinfo,coin,height);
         printf("nogen %s HIST BALANCE %s %.8f errs %d\n",fname2,bits256_str(str,coin->utxoaddrhash),dstr(coin->histbalance),errs);
-        if ( errs == 0 && coin->histbalance > 0 )
+        if ( errs == 0 && coin->histbalance > 0 && height > 0 )
         {
             coin->firstRTheight = coin->RTheight = height;
             iguana_RTreset(coin);
@@ -1308,7 +1308,7 @@ continue;
             printf("validating %s HIST BALANCE %s %.8f errs %d\n",fname2,bits256_str(str,coin->utxoaddrhash),dstr(coin->histbalance),errs);
             errs = iguana_utxoaddr_validate(myinfo,coin,height);
             printf("gen %s HIST BALANCE %s %.8f errs %d\n",fname2,bits256_str(str,coin->utxoaddrhash),dstr(coin->histbalance),errs);
-            if ( errs != 0 )
+            if ( errs != 0 || height == 0 )
             {
                 printf("delete bad utxoaddr files\n");
                 OS_removefile(fname,0);
diff --git a/iguana/main.c b/iguana/main.c
index c59f1c760..2b3e79515 100755
--- a/iguana/main.c
+++ b/iguana/main.c
@@ -408,7 +408,7 @@ void mainloop(struct supernet_info *myinfo)
             //portable_mutex_lock(&myinfo->allcoins_mutex);
             HASH_ITER(hh,myinfo->allcoins,coin,tmp)
             {
-                if ( coin->RTheight == 0 && coin->current != 0 && coin->active != 0 && coin->started != 0 )
+                if ( coin->RTheight == 0 && coin->firstRTheight == 0 && coin->current != 0 && coin->active != 0 && coin->started != 0 )
                 {
                     isRT *= coin->isRT;
                     if ( coin->peers != 0 )