work with order execution - we are forced to do limit orders over the API

NN/models/enhanced_cnn.py

@@ -373,6 +373,12 @@ class EnhancedCNN(nn.Module):
     
     def _check_rebuild_network(self, features):
         """Check if network needs to be rebuilt for different feature dimensions"""
+        # Prevent rebuilding with zero or invalid dimensions
+        if features <= 0:
+            logger.error(f"Invalid feature dimension: {features}. Cannot rebuild network with zero or negative dimensions.")
+            logger.error(f"Current feature_dim: {self.feature_dim}. Keeping existing network.")
+            return False
+            
         if features != self.feature_dim:
             logger.info(f"Rebuilding network for new feature dimension: {features} (was {self.feature_dim})")
             self.feature_dim = features
@@ -386,6 +392,20 @@ class EnhancedCNN(nn.Module):
         """Forward pass through the ULTRA MASSIVE network"""
         batch_size = x.size(0)
         
+        # Validate input dimensions to prevent zero-element tensor issues
+        if x.numel() == 0:
+            logger.error(f"Forward pass received empty tensor with shape {x.shape}")
+            # Return default output to prevent crash
+            default_output = torch.zeros(batch_size, self.n_actions, device=x.device)
+            return default_output
+        
+        # Check for zero feature dimensions
+        if len(x.shape) > 1 and any(dim == 0 for dim in x.shape[1:]):
+            logger.error(f"Forward pass received tensor with zero feature dimensions: {x.shape}")
+            # Return default output to prevent crash
+            default_output = torch.zeros(batch_size, self.n_actions, device=x.device)
+            return default_output
+        
         # Process different input shapes
         if len(x.shape) > 2:
             # Handle 4D input [batch, timeframes, window, features] or 3D input [batch, timeframes, features]