Airfields names and identifiers do not appear following the importance of the field. At a zoom level of 500k, for example, LFMT, that is an international airport, does not appear (I mean the name and identifier) and LF3461, small microlight field, appears !!! It is necessary to zoom to 100k to make LFMT and LFNG appear. I believe this problem did not existed some time ago. This problem concerns the PC and IPAD versions of SD. More curious, LFNG, smaller than LFMT, appears at 250k, LFMT only at 100k.