Lighting Data disappears in 5.3.6f1 after reopening the editor?

Hi everyone,

I have a major problem with Enlighten. I'm trying to upgrade the project to 5.3.6f1 (as it fixes a couple of major Enlighten bugs, including the previously broken Light Probes), but I can't get my bake to stay in my scene. Here's what happens:

1. I open my main scene (which is really big and has a lot of Realtime Spot, Point and emissive lights, as well as two Directional Baked lights.

2. Bake both Precomputed and Baked GI

3. Around seven hours go by

4. The bake is finished, and the bake looks fine

5. I relaunch Unity

6. The bake is no longer attached to the scene, I can't find the Lighting Data Asset for the scene in question, however, all of the lightmap files are in the appropriate folder.

I also get an error that says "Baking something something failed." it doesn't give any more details, but the funny thing is that the bake is THERE until I relaunch Unity.

I cleared GI Cache, and I don't have this problem in 5.3.5f1 at all.

When I recreate my scene setup, but with a much smaller scene, the bake remains there after I relaunch Unity, and I don't have the error mentioned above.

Can it be because the scene is too big for Enlighten? I can't make it smaller, but maybe there's some other way of handling the bake procedure? Any ideas?

Thank you!