Swapping build plate failed on X5

•Optoelectronic Switch Assembly Failed

→ Replace Optoelectronic Switch Assembly

•The limit switch under the build plate loose its connection

→ Replace related limit switch cable, check if there is any loose on those connectors in transation board

•Check the platform and plate library are level or not

→ Adjust the location of the plate library or adjust the build plate

•Check if there are enough print boards in the board library

→ When there is only one printing board left in the board library, the board cannot be changed (minimum two printing boards)