Water appears with little slices missing at bedrock layer. I am using a resource pack called 'Minecraft Classic Texture Pack'. This is the only time it has happened in the world.'

To recreate this issue, just put the Minecraft Classic Texture Pack on, go to bedrock layer, replace all of the stone,granite,andesite,diorite,etc. with sandstone stairs (IDK if this is nessasary but I did it) and waterlog ladders.