I wanted to speed up my workflow by optimizing a group by action. Originally i just used the group by node and waited quite a while. therefore, i tried to solve the problem with sorting the data by the group i need, used a group loop (sorting according to that group) and ticking the "input is already sorted by group column(s)". between start and end was the same group by i used before. like this the flow was much faster and works till right before the end. then i get this error: Group Loop Start 0:568 - ERROR: Execute failed: path of workflow_repository...\KNIME_DuplicateChecker.bin (The system cannot find the file specified).
I tested this with other group bys and it worked well. However, here i get the issue with duplicatedchecker.bin, however i don't know how to interpret this message. Any experience?