Expression does not evaluate to a column or table name error when updating object in MapBasic

Question

I tries to set styles for all objects in my processing_table, but gets Expression does not evaluate to a column or table name

My code:

'...
pen_style = currentpen() 'get_pen(styles_table_name, obj_type, class_id, selected_scale)
altering_obj = processing_table.obj
alter object altering_obj
    info OBJ_INFO_PEN, pen_style
cmd = "select * from processing_table where objectid = " & id_value & " and class_id = " & class_id & " into one_obj"
run command cmd
update one_obj set obj = altering_obj where rowid = 1 ' Expression does not evaluate to a column or table name error
close table one_obj
'...

And sandbox script works perfectly:

'...
query = "select * from " & selected_layer_name & " where " & id_field_name  & " = " & filter_value & "into filtered"
run command query
id_field = "filtered.objectid"
while not eot(filtered)
    id_value = id_field
    altering_obj = filtered.obj
    alter object altering_obj
        info OBJ_INFO_SYMBOL, point_symbol

    query = "select * from " & selected_layer_name & " where objectid = " & id_value & " into one_obj"
    run command query

    update one_obj set obj = altering_obj where rowid = 1
    close table one_obj
    fetch next from filtered
wend
close table filtered
'...

I can't understand where these scripts are different. Algorithm is same:

1. Alter object from processing table
2. Select this object into one_obj table
3. Update it

Both scripts I checked with same tables. May be reason is in different connection to tables?

In sandbox I use already opened table:

selected_layer_name = layerinfo(window_id, suitable_layers(selected_layer), LAYER_INFO_NAME)
query = "select * from " & selected_layer_name & " where " & id_field_name  & " = " & filter_value & "into filtered"

And in non-working script I opens table from disk:

cmd = "open table " & chr$(34) & tab_file & chr$(34)
run command cmd
table_name = TableInfo(0, TAB_INFO_NAME)
'...
cmd = "select * from " & table_name & " into processing_table"
run command cmd

Answer 1

Error reason was not in above code samples but in code that performs earlier:

query = "select obj from " & selected_layer_name & " where str$(object) = " & chr$(34) & str & chr$(34) & " and class_id = " & class_id & " into temp_obj"
run command query

When I changes select obj ... to select * ... updating became work.

But I still not understood why error happens.