O3-review/known-events.md

@@ -13,6 +13,11 @@ weights = np.square(bilby_posterior['mass_1']) / bilby_posterior['chirp_mass']
 
 * Additionally, the `phi_1` and `phi_2` figures also show a discrepancy. In the telecon [190813](https://git.ligo.org/lscsoft/bilby_pipe/wikis/O3-review/minutes/190813), Colm demonstrated this was also due to the waveforms interface by again comparing results from O3 L.I. runs.
 
+## Distance
+
+* The individual MCMC and Nest runs from `LALInference` will likely not have been corrected for the distance bug, see https://git.ligo.org/lscsoft/lalsuite/merge_requests/780.
+This will make the LI distance closer by a few percent and introduce a small bias in source-frame masses.
+
 ## Comparison with LALInference
 We compare all results to LALInference Nest and MCMC runs using the IMRPhenomPv2 analyses performed for GWTC1.