diff --git a/skyvern-frontend/src/routes/workflows/editor/workflowEditorUtils.ts b/skyvern-frontend/src/routes/workflows/editor/workflowEditorUtils.ts
index 915919ff..a45ca4d7 100644
--- a/skyvern-frontend/src/routes/workflows/editor/workflowEditorUtils.ts
+++ b/skyvern-frontend/src/routes/workflows/editor/workflowEditorUtils.ts
@@ -1574,7 +1574,7 @@ function convertBlocksToBlockYAML(
         const blockYaml: ForLoopBlockYAML = {
           ...base,
           block_type: "for_loop",
-          loop_over_parameter_key: block.loop_over.key,
+          loop_over_parameter_key: block.loop_over?.key ?? "",
           loop_blocks: convertBlocksToBlockYAML(block.loop_blocks),
           loop_variable_reference: block.loop_variable_reference,
         };
diff --git a/skyvern/forge/agent.py b/skyvern/forge/agent.py
index e1789fcd..f70dbcf2 100644
--- a/skyvern/forge/agent.py
+++ b/skyvern/forge/agent.py
@@ -572,7 +572,7 @@ class ForgeAgent:
 
             failure_reason = "unexpected exception"
             if isinstance(e, SkyvernException):
-                failure_reason = f"unexpected SkyvernException({e.__class__.__name__})"
+                failure_reason = f"unexpected SkyvernException({e.__class__.__name__}): {str(e)}"
 
             is_task_marked_as_failed = await self.fail_task(task, step, failure_reason)
             if is_task_marked_as_failed:
diff --git a/skyvern/forge/sdk/workflow/models/block.py b/skyvern/forge/sdk/workflow/models/block.py
index c7405170..38d694e5 100644
--- a/skyvern/forge/sdk/workflow/models/block.py
+++ b/skyvern/forge/sdk/workflow/models/block.py
@@ -263,6 +263,10 @@ class Block(BaseModel, abc.ABC):
                         artifact_type=ArtifactType.SCREENSHOT_LLM,
                         data=screenshot,
                     )
+
+            LOG.info(
+                "Executing block", workflow_run_id=workflow_run_id, block_label=self.label, block_type=self.block_type
+            )
             return await self.execute(workflow_run_id, workflow_run_block_id, organization_id=organization_id, **kwargs)
         except Exception as e:
             LOG.exception(
@@ -278,7 +282,7 @@ class Block(BaseModel, abc.ABC):
 
             failure_reason = "unexpected exception"
             if isinstance(e, SkyvernException):
-                failure_reason = f"unexpected SkyvernException({e.__class__.__name__})"
+                failure_reason = f"unexpected SkyvernException({e.__class__.__name__}): {str(e)}"
 
             return await self.build_block_result(
                 success=False,
@@ -843,13 +847,17 @@ class ForLoopBlock(Block):
                     parent_workflow_run_block_id=workflow_run_block_id,
                     organization_id=organization_id,
                 )
+
+                output_value = (
+                    workflow_run_context.get_value(block_output.output_parameter.key)
+                    if workflow_run_context.has_value(block_output.output_parameter.key)
+                    else None
+                )
                 each_loop_output_values.append(
                     {
                         "loop_value": loop_over_value,
                         "output_parameter": block_output.output_parameter,
-                        "output_value": workflow_run_context.get_value(block_output.output_parameter.key)
-                        if workflow_run_context.has_value(block_output.output_parameter.key)
-                        else None,
+                        "output_value": output_value,
                     }
                 )
                 try:
@@ -886,12 +894,13 @@ class ForLoopBlock(Block):
 
                 if not block_output.success and not loop_block.continue_on_failure:
                     LOG.info(
-                        f"ForLoopBlock: Encountered an failure processing block {block_idx} during loop {loop_idx}, terminating early",
+                        f"ForLoopBlock: Encountered a failure processing block {block_idx} during loop {loop_idx}, terminating early",
                         block_outputs=block_outputs,
                         loop_idx=loop_idx,
                         block_idx=block_idx,
                         loop_over_value=loop_over_value,
                         loop_block_continue_on_failure=loop_block.continue_on_failure,
+                        failure_reason=block_output.failure_reason,
                     )
                     outputs_with_loop_values.append(each_loop_output_values)
                     return LoopBlockExecutedResult(
diff --git a/skyvern/forge/sdk/workflow/service.py b/skyvern/forge/sdk/workflow/service.py
index 74911125..eaa5cbc8 100644
--- a/skyvern/forge/sdk/workflow/service.py
+++ b/skyvern/forge/sdk/workflow/service.py
@@ -351,7 +351,7 @@ class WorkflowService:
 
                 exception_message = "unexpected exception"
                 if isinstance(e, SkyvernException):
-                    exception_message = f"unexpected SkyvernException({e.__class__.__name__})"
+                    exception_message = f"unexpected SkyvernException({e.__class__.__name__}): {str(e)}"
 
                 failure_reason = f"Block with type {block.block_type} at index {block_idx}/{blocks_cnt -1} failed. failure reason: {exception_message}"
                 await self.mark_workflow_run_as_failed(
@@ -1371,7 +1371,7 @@ class WorkflowService:
                     loop_over_parameter = parameters[trimmed_key]
 
             if loop_over_parameter is None and not block_yaml.loop_variable_reference:
-                raise Exception("empty loop value parameter")
+                raise Exception("Loop value parameter is required for for loop block")
 
             return ForLoopBlock(
                 label=block_yaml.label,