Even with the random state set, there can be change's with really small changes to any part of the process. It usually is a result of Changes in the Software Environment. There is nothing per say to do, the best thing you can do is ensure everything from the dataset to the package's and everything is locked down ensuring that there are no changes in between the run's.
There were some discussions on how this can be prevented I am linkthing them here so you can explore other options as well: