diff --git a/backend/src/api/disk-cache.ts b/backend/src/api/disk-cache.ts
index 71a3d9d53..7a38e7da0 100644
--- a/backend/src/api/disk-cache.ts
+++ b/backend/src/api/disk-cache.ts
@@ -17,6 +17,7 @@ class DiskCache {
   private static TMP_FILE_NAMES = config.MEMPOOL.CACHE_DIR + '/tmp-cache{number}.json';
   private static FILE_NAME = config.MEMPOOL.CACHE_DIR + '/cache.json';
   private static FILE_NAMES = config.MEMPOOL.CACHE_DIR + '/cache{number}.json';
+  private static TMP_RBF_FILE_NAME = config.MEMPOOL.CACHE_DIR + '/tmp-rbfcache.json';
   private static RBF_FILE_NAME = config.MEMPOOL.CACHE_DIR + '/rbfcache.json';
   private static CHUNK_FILES = 25;
   private isWritingCache = false;
@@ -103,14 +104,26 @@ class DiskCache {
       logger.warn('Error writing to cache file: ' + (e instanceof Error ? e.message : e));
       this.isWritingCache = false;
     }
+
     try {
       logger.debug('Writing rbf data to disk cache (async)...');
       this.isWritingCache = true;
-
-      await fsPromises.writeFile(DiskCache.RBF_FILE_NAME, JSON.stringify({
-        rbfCacheSchemaVersion: this.rbfCacheSchemaVersion,
-        rbf: rbfCache.dump(),
-      }), { flag: 'w' });
+      const rbfData = rbfCache.dump();
+      if (sync) {
+        fs.writeFileSync(DiskCache.TMP_RBF_FILE_NAME, JSON.stringify({
+          network: config.MEMPOOL.NETWORK,
+          rbfCacheSchemaVersion: this.rbfCacheSchemaVersion,
+          rbf: rbfData,
+        }), { flag: 'w' });
+        fs.renameSync(DiskCache.TMP_RBF_FILE_NAME, DiskCache.RBF_FILE_NAME);
+      } else {
+        await fsPromises.writeFile(DiskCache.TMP_RBF_FILE_NAME, JSON.stringify({
+          network: config.MEMPOOL.NETWORK,
+          rbfCacheSchemaVersion: this.rbfCacheSchemaVersion,
+          rbf: rbfData,
+        }), { flag: 'w' });
+        await fsPromises.rename(DiskCache.TMP_RBF_FILE_NAME, DiskCache.RBF_FILE_NAME);
+      }
       logger.debug('Rbf data saved to disk cache');
       this.isWritingCache = false;
     } catch (e) {
@@ -214,9 +227,15 @@ class DiskCache {
           logger.notice('Rbf disk cache contains an outdated schema version. Clearing it and skipping the cache loading.');
           return this.wipeRbfCache();
         }
+        if (rbfData.network && rbfData.network !== config.MEMPOOL.NETWORK) {
+          logger.notice('Rbf disk cache contains data from a different network. Clearing it and skipping the cache loading.');
+          return this.wipeRbfCache();
+        }
       }
 
-      rbfCache.load(rbfData.rbf);
+      if (rbfData?.rbf) {
+        rbfCache.load(rbfData.rbf);
+      }
     } catch (e) {
       logger.warn('Failed to parse rbf cache. Skipping. Reason: ' + (e instanceof Error ? e.message : e));
     }