diff --git a/iguana/exchanges/LP_cache.c b/iguana/exchanges/LP_cache.c
index f79f23175..faa0ba9a6 100644
--- a/iguana/exchanges/LP_cache.c
+++ b/iguana/exchanges/LP_cache.c
@@ -62,7 +62,7 @@ cJSON *LP_cache_transaction(struct iguana_info *coin,bits256 txid,uint8_t *seria
 
 void LP_SPV_store(struct iguana_info *coin,char *coinaddr,bits256 txid,int32_t height)
 {
-    struct LP_transaction TX; struct LP_transaction *tx = 0;
+    struct LP_transaction TX; int32_t n; struct LP_transaction *tx = 0;
     if ( coin->cachefp != 0 && (tx= LP_transactionfind(coin,txid)) != 0 && tx->serialized != 0 && tx->len > 0 ) //strcmp(coin->smartaddr,coinaddr) == 0 &&
     {
         char str[65]; printf("store %s %s.[%d]\n",coin->symbol,bits256_str(str,txid),tx->len);
@@ -74,6 +74,9 @@ void LP_SPV_store(struct iguana_info *coin,char *coinaddr,bits256 txid,int32_t h
         if ( tx->numvouts > 0 )
             fwrite(TX.outpoints,tx->numvouts,sizeof(*TX.outpoints),coin->cachefp);
         fwrite(tx->serialized,1,tx->len,coin->cachefp);
+        n = tx->len;
+        while ( (n & 7) != 0 )
+            fputc(0,coin->cachefp), n++;
         fflush(coin->cachefp);
     }
 }
@@ -89,11 +92,17 @@ void LP_SPV_store(struct iguana_info *coin,char *coinaddr,bits256 txid,int32_t h
 
 int32_t LP_cacheitem(struct iguana_info *coin,struct LP_transaction *tx,long remains)
 {
-    int32_t offset;
+    int32_t offset; bits256 hash; char str[65],str2[65];
     offset = sizeof(*tx) + tx->numvouts*sizeof(*tx->outpoints);
     if ( offset+tx->len <= remains )
     {
-        return(0);
+        hash = bits256_doublesha256(0,&((uint8_t *)tx)[offset],tx->len);
+        if ( bits256_cmp(hash,tx->txid) == 0 )
+        {
+            printf("%s validated in cache\n",bits256_str(str,hash));
+            return(0);
+        }
+        printf("%s vs %s did not validated in cache\n",bits256_str(str,hash),bits256_str(str2,tx->txid));
     }
     return(-1);
 }
diff --git a/iguana/exchanges/LP_include.h b/iguana/exchanges/LP_include.h
index c87c181ba..ec308800d 100644
--- a/iguana/exchanges/LP_include.h
+++ b/iguana/exchanges/LP_include.h
@@ -37,6 +37,7 @@ void emscripten_usleep(int32_t x); // returns immediate, no sense for sleeping
 #define LP_BARTERDEX_VERSION 1
 #define LP_MAGICBITS 8
 
+#define LP_MAXVINS 64
 #define LP_HTTP_TIMEOUT 3 // 1 is too small due to edge cases of time(NULL)
 #define LP_AUTOTRADE_TIMEOUT 30
 #define ELECTRUM_TIMEOUT 7
diff --git a/iguana/exchanges/LP_transaction.c b/iguana/exchanges/LP_transaction.c
index 6fe266200..91bdb2f2d 100644
--- a/iguana/exchanges/LP_transaction.c
+++ b/iguana/exchanges/LP_transaction.c
@@ -481,12 +481,11 @@ int64_t iguana_lockval(int32_t finalized,int64_t locktime)
 
 int32_t iguana_signrawtransaction(void *ctx,char *symbol,uint8_t wiftaddr,uint8_t taddr,uint8_t pubtype,uint8_t p2shtype,uint8_t isPoS,int32_t height,struct iguana_msgtx *msgtx,char **signedtxp,bits256 *signedtxidp,struct vin_info *V,int32_t numinputs,char *rawtx,cJSON *vins,cJSON *privkeysjson,int32_t zcash)
 {
-    uint8_t *serialized,*serialized2,*serialized3,*serialized4,*extraspace,pubkeys[64][33]; int32_t finalized,i,len,n,z,plen,maxsize,complete = 0,extralen = 100000; char *privkeystr,*signedtx = 0; bits256 *privkeys,privkey,txid; cJSON *item; cJSON *txobj = 0;
+    uint8_t *serialized,*serialized2,*serialized3,*serialized4,*extraspace,pubkeys[64][33]; int32_t finalized,i,len,n,z,plen,maxsize,complete = 0,extralen = 100000; char *privkeystr,*signedtx = 0; bits256 privkeys[LP_MAXVINS],privkey,txid; cJSON *item; cJSON *txobj = 0;
     maxsize = 1000000;
     memset(privkey.bytes,0,sizeof(privkey));
     if ( rawtx != 0 && rawtx[0] != 0 && (len= (int32_t)strlen(rawtx)>>1) < maxsize )
     {
-        privkeys = calloc(numinputs+1024,sizeof(*privkeys));
         serialized = malloc(maxsize);
         serialized2 = malloc(maxsize);
         serialized3 = malloc(maxsize);
@@ -506,7 +505,7 @@ int32_t iguana_signrawtransaction(void *ctx,char *symbol,uint8_t wiftaddr,uint8_
             if ( iguana_rwmsgtx(taddr,pubtype,p2shtype,isPoS,height,0,0,serialized,maxsize,msgtx,&txid,"",extraspace,extralen,vins,V->suppress_pubkeys,zcash) > 0 && numinputs == msgtx->tx_in )
             {
                 memset(pubkeys,0,sizeof(pubkeys));
-                memset(privkeys,0,sizeof(*privkeys)*numinputs);
+                memset(privkeys,0,sizeof(privkeys));
                 if ( (n= cJSON_GetArraySize(privkeysjson)) > 0 )
                 {
                     for (i=0; i<n; i++)
@@ -602,7 +601,6 @@ int32_t iguana_signrawtransaction(void *ctx,char *symbol,uint8_t wiftaddr,uint8_
             } else printf("rwmsgtx error\n");
         } else printf("no inputs in vins.(%s)\n",vins!=0?jprint(vins,0):"null");
         free(extraspace);
-        free(privkeys);
         free(serialized), free(serialized2), free(serialized3), free(serialized4);
     } else return(-1);
     if ( txobj != 0 )
@@ -1004,7 +1002,7 @@ int32_t LP_vins_select(void *ctx,struct iguana_info *coin,int64_t *totalp,int64_
 char *LP_createrawtransaction(cJSON **txobjp,int32_t *numvinsp,struct iguana_info *coin,struct vin_info *V,int32_t max,bits256 privkey,cJSON *outputs,cJSON *vins,cJSON *privkeys,int64_t txfee,bits256 utxotxid,int32_t utxovout,uint32_t locktime)
 {
     static void *ctx;
-    cJSON *txobj,*item; uint8_t addrtype,rmd160[20],script[64],spendscript[256]; char *coinaddr,*rawtxbytes; bits256 txid; uint32_t timestamp; int64_t change=0,adjust=0,total,value,amount = 0; int32_t i,dustcombine,scriptlen,spendlen,suppress_pubkeys,ignore_cltverr,numvouts=0,numvins=0,numutxos=0; struct LP_address_utxo *utxos[1024]; struct LP_address *ap;
+    cJSON *txobj,*item; uint8_t addrtype,rmd160[20],script[64],spendscript[256]; char *coinaddr,*rawtxbytes; bits256 txid; uint32_t timestamp; int64_t change=0,adjust=0,total,value,amount = 0; int32_t i,dustcombine,scriptlen,spendlen,suppress_pubkeys,ignore_cltverr,numvouts=0,numvins=0,numutxos=0; struct LP_address_utxo *utxos[LP_MAXVINS]; struct LP_address *ap;
     if ( ctx == 0 )
         ctx = bitcoin_ctx();
     *numvinsp = 0;
@@ -1143,7 +1141,7 @@ char *LP_withdraw(struct iguana_info *coin,cJSON *argjson)
     safecopy(changeaddr,coin->smartaddr,sizeof(changeaddr));
     safecopy(vinaddr,coin->smartaddr,sizeof(vinaddr));
     privkey = LP_privkey(vinaddr,coin->taddr);
-    maxV = 1024;
+    maxV = LP_MAXVINS;
     V = malloc(maxV * sizeof(*V));
     for (iter=0; iter<2; iter++)
     {