UBB.threads PHP Forum Software Community Forums UBB.threads Importer Support File Manager is missing

It's the file type being blank. Inline images will only be displayed if the file type is known to be a valid image type. You could fix this with a couple of queries like this:

update ubbt_FILES set FILE_TYPE='jpg' where FILE_NAME like '%.jpg'

update ubbt_FILES set FILE_TYPE='gif' where FILE_NAME like '%.gif'

update ubbt_FILES set FILE_TYPE='png' where FILE_NAME like '%.png'