I created workflow which contains 65 workflow with CRew Macros conditional running, it work fine when runnig from designer but it failed through
error
ConvError: Runner (1): Tool #2: The field "Field_1" was truncated in record #16
when running from Alteryx Server
I haven't yet encountered a workflow that was actually stopped by a Conversion Error. Maybe go through the messages again to check for an error that reads "Error" and not "ConvError"?
If it is indeed a ConvError stopping the Conditional Runner, then you'll have to go to the workflow in Runner (1) and expand the size of Field_1 because some records are too large/long for its current size (hence the truncation issue).