jayds

The error is resolved when the files and folders are reloaded cleanly onto the server (e.g., bedrock-server-1.21.95.1).
Delete them first, don't just add and overwrite them.

Folder & File Structure
Files:
bedrock_server
profanity_filter.wlist

Folder:
behavior_packs
definitions
resource_packs

The entire folder with the same error, with newly created world

Error:

minecraft:jigsaw_structure_metadata -> metadata[0] -> markers[0] -> joint_type: This value is bound to 'Jigsaw Joint Type' and expects one of the following strings: 'rollable', 'aligned'. Found: ''