Q Light Controller+

Our file was written on 4.10. We have tried the upgrade a few times and the show file opens and works for the most part, but does not work as good as our one that was designed on 4.12. The 4.10 has a ton of programming time on it and the 4.12 is a quick easy setup. Is there an issue with show files created before 4.12 that things may not work the best?

What about opening the file in version 5?

Files created before 4.10.5 should be converted - see: https://www.qlcplus.org/sequence_migration.php
You can open your 4.x project in v5 - it will convert accordingly.