Unknown FG1 block type

[Sci-Twi-144]

Due to this error, some paths do not open.
Most often this happens at levels changed in the old Editor 0.6.1.

[Sci-Twi-144]

I guess what’s wrong, if you change the image in the old Editor 0.6.1, then load this level in the new one, the error will appear.

[mouzedrift]

The old editor is known for corrupting levels and not handling things correctly, so errors like this are kind of expected. If I remember correctly, this will happen if you delete FG1 in the old editor and then try to load the path with the deleted FG1 in the new editor. So if it didn't lose too much, I would remake the bits that can't be loaded in the new editor, or if a lot of paths are affected, there is a local build of the editor somewhere on the R.E.L.I.V.E. discord server which discards all FG1 in the path you load.