Informed by Ray and Michael that some (or many) Orbx addons have problems loading into the new Prepar3D 2.5 version. I didn’t aware of that too. Luckily that I didn’t have time to do the installation after downloading the new version earlier this morning. Orbx is working on a fix.
Do note there are other incompatibility issues reported by other users regarding the new version 2.5 in Comments section of this post below.
Better hold your installation for now if you haven’t done so.