LP360 Strip Align Error: TypeError: can only concatenate list (not "str") to list

📌Problem

You're encountering the following error while running Strip Align (Legacy) in LP360:

TypeError: can only concatenate list (not "str") to list

🧠 Root Cause

This error typically occurs in the Strip Align workflow due to a mismatch in data types within the Python script used by LP360. 

✅ Probable Resolutions

1. Preserve Cycle Identifiers in LAS Layer Names

   Ensure that LAS layers in the Table of Contents (TOC) retain their original Cycle identifiers (e.g., C250303_210516). Renaming layers and removing these identifiers can cause the Strip Align process to fail.

2. Avoid Premature LAS Merging

   Do not merge LAS files before running Strip Align. Let the tool handle merging internally to ensure proper flight line identification and processing.

📚 Additional Notes

Deprecated in v2025.2.