lunar towers changing?

[Iscah]

They are

Do you have screenshots from the beginning to confirm that they are different now?

I couldn't discern a change with the towers, though I'm pretty sure the moon starts glowing much brighter after the events of 5.4 (Comparing how it looks in Norvrandt vs. most places on the Source).

The moon changes brightness with phase, time of night and I think also the weather.

People were saying the moon looked darker in the leadup to Shadowbringers too but I think it's just a lot of normal variables.