Looks like a bit of anthocyanin developed on the new growth due to higher light and you need to avoid heat built up on the leaves so you will need extra air circulation. Are you growing the Cattleya under LED?
December 29, 2022
Deflasked seedlings in compot:
September 16, 2023:
After repot:
The pattern on the leaves are beginning to look really neat, I need to put them further away from my lights as it is really bright!