In the changelog for 1.14.2-pre4 the following is stated:
All light will now be re-calculated the first time you open a world saved in a pervious version [sic]
This calculation seems to take some time for each chunk, leading to significant lag when a new chunk is loaded. I experienced severe rubber-banding and errors in my log. After the chunks have been re-calculated, the game plays perfectly fine (much, much better than the current 1.14.1 release)
It would by nice if server owners could properly pre-calculate light for the entire world before making the switch to 1.14.2, in the same way we could for 1.13 with the `--forceUpgrade` flag.
For the inevitable comments: I have tried with {{--forceUpgrade --eraseCache }}flags, and the lag still occurs.
Comments 3
please implement this. After literally hours of forceupgrade, any newly visited (but already existing) chunk lags a lot to load. It's nice to convert all the blockdata or whatever at one go, but it would be awesome to be able to do so with lighting as well. It's just as slow visiting new chunks as before I ran forceupgrade
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