sfcgal ST_Volume Issue

ST_Volume works with shape data pasted into the query in this form:

SELECT (abs(ST_Volume(design)) -     
        abs(ST_Volume(ST_3DIntersection(design,scan))))

FROM   (SELECT (ST_MakeSolid('POLYHEDRALSURFACEZ( ...definition goes here...) ')) AS design,

(ST_MakeSolid('POLYHEDRALSURFACEZ(...definition goes here...)'))  AS scan )

AS t;

But if I enter the data into a table and try to read it into the query, in this way, ST_Volume outputs 0:

WITH sd AS (SELECT data_value AS design 
        FROM data
        WHERE data_label = '3D Design TINZ'),
     ss AS      (SELECT data_value AS scan  
        FROM data
        WHERE data_label = '3D Scan TINZ')

SELECT 
sd.design,
ST_IsSolid(sd.design) ,
ST_IsSolid(ST_MakeSolid(sd.design)) ,
ST_Volume(ST_MakeSolid(sd.design)),
ST_Volume(ST_MakeSolid(ST_GeomFromText(sd.design))),
ST_3DArea(sd.design),
ST_3DIntersection(sd.design,ss.scan)
FROM sd,ss; 

Output is:

So the ST_MakeSolid toggles ST_IsSolid from false to true, but the ST_Volume function returns 0, meaning that it does not recognise the input as a solid, or …?

But the ST_3DArea and ST_3DIntersections functions appear to work fine.

ST_Volume(ST_MakeSolid(sd.design))