This is not a bug.
Prior to 188.8.131.52 when you were linking a LAS / LAZ file and accessing the drawing / table, the system was checking for the spatial index and if the index did not exist, the system was building it right there and then, forcing you to wait until the index is built. With 184.108.40.206 we now build the index in background and open the drawing / table without waiting, then notify relevant windows when the index is built.
See this item in the build notes:
The LAS / LAS library dataports build their spatial index in background, to allow doing other things in the same Manifold session while the index is building.
After you open the drawing or table and it shows nothing, note that the busy indicator in the right bottom corner is engaged - the system is building an index. Building an index on the file in the post should take about 2 minutes (took slightly more than that on a test machine), after that there will be a message in the log window, the busy indicator will turn inactive and both the drawing and table will show data.
Now, in 220.127.116.11 until the index is built, both the drawing and the table show nothing. We noticed that the table does not actually need the spatial index to work so in the future only the drawing will show nothing and the table will show records.
We are working on some other improvements here which will help, too.