Strong glitch signals are present in several of the top BBH trigger times on October 23. They can be viewed here:

https://ldas-jobs.ligo-wa.caltech.edu/~jacob.broida/Oct23/BBH/GW/1129610330/
https://ldas-jobs.ligo-wa.caltech.edu/~jacob.broida/Oct23/BBH/GW/1129664910/
https://ldas-jobs.ligo-wa.caltech.edu/~jacob.broida/Oct23/BNS/GW/1129627593/

No clear correlation in any auxiliary channels, though they are potentially electrical in origin.