there's a bug with file merge sop,I add a file catch sop after it,then houdini will catch all frame buffer into only one file on disk

create guided ocean layer>distribute>loadslice>file catch reshow this issue.

plz look into this.

https://www.sidefx.com/forum/topic/25347/ [sidefx.com]

download a daily build there have been solved a lot of bug's