I'm having this same issue and it is occurring in a custom 2nd app (barebones setup).  I have the MLTK installed along with the accompanying package for scientific computing.   I've created a custom Splunk app (barebones) from the Splunk UI.  I've added a custom algorithm in the algos subdirectory and modified the algos.conf (added [MyAlgorithm]) appropriately.  When I try to call this algorithm from the Spunk UI Search box using fit it can't load the algorithm (doesn't even get to running the code). This all works fine if I do the same thing in the  Splunk_ML_Toolkit app (put the algorithm there etc).  Is there some permissions setting I'm missing or something? 02-10-2022 16:15:08.046 ERROR dispatchRunner [15506 MainThread] - RunDispatch::runDispatchThread threw error: Error in 'fit' command: Error while initializing algorithm "MyAlgorithm": Failed to load algorithm "algos.MyAlgorithm"   ... View more