Hello Gospel. I apologize for the delayed response. Thank you for your concern regarding your experience with the Materia Meld Lock. This is definitely something that could pose a problem and should be escalated to the dev team.
In order for me to submit your report, I would need to know what system you are playing on and its specifications. The amount of information provided is insufficient to conduct a thorough investigation of the issue and replicate the matter on our systems to resolve it.
Also, if you could please refer to the Welcome to the "In-Game Bugs" Forum! (READ THIS FIRST) to find out what information we need in order to investigate. You can use these Windows errors and PS3 errorstemplates as guides to provide the important information to us in the clearest way possible.

Please update us with the additional information as soon as you can, so we can further look further into this error and take measures to resolve it to improve the experience of playing the game.

Thank you for playing FINAL FANTASY XIV: A Realm Reborn.

-SQUARE ENIX Moderator