10+ Orchids Leaves Turning Brown. Leaves start browning from the tips, this can be caused due to a number of reasons. The only pictures of burned leaves i could find had a more yellow color.
Bacterial rot is typified by a watery lesion on a leaf and is spread by splashing water. They can survive a variety of conditions and come in different colors. Your soil looks very dark and heavy.
Leaf yellowing can be caused by too much watering, which has resulted in the roots to suffocate.
From repotting to blooming, here are the practices for watering and pruning to make it bloom and the growing of the cambria orchid is known to be quite straightforward even if a few rules are needed to have nice flowers and extend the flowering. Your soil looks very dark and heavy. If the root cause is a fungal infection, you may need to use tools to excise the infected areas before. Your remaining leaf looks very healthy so you may not lose your plant.