SSD disk has its own mechanism of re-distribution disk sectors - wear-leveling.
If you follow the special recommendations for SSD disks, it is possible to encrypt SSD disk securely. Please take into account that if some sensitive data already resides on the disk before encryption, BCVE cannot give a 100% guarantee that all data will be encrypted: unencrypted data may exist on the SSD’s reserved area even after full encryption.
It is recommended to encrypt 100% of the disk first (for non-system volumes you can use 'quick initial encryption' option), and then input sensitive data on the SSD drive.