I am asking for members' help in a text mining workflow.

During a text mining workflow, I am facing the following problem: I close the loop cycles, start new ones and try to merge tables with a joiner node, but for every variation I get the error message “Can’t merge FlowVariable Stacks! (likely a loop problem.)”. This is the same phenomenon when I want to use the Concatenate node. No matter what Loop end I try to close, or if I use multiple loop end nodes, the process always gets stuck.

Please, help me 🙂