Every time you play Kentrith's Transformation onto Ashaya the only effect is Ashaya's power and toughness is changed to 3/3. It should remove the passive effect as well. The rest of your creatures should not be lands when Kenrith's Transformation is attached to Ashaya. This is specifically a bug as other cards that say they remove all effects of the creature they attach to correctly stop Ashaya's passive.
Every time you play Kentrith's Transformation onto Ashaya the only effect is Ashaya's power and toughness is changed to 3/3. It should remove the passive effect as well. The rest of your creatures should not be lands when Kenrith's Transformation is attached to Ashaya. This is specifically a bug as other cards that say they remove all effects of the creature they attach to correctly stop Ashaya's passive.