Nik

i got a 970ti "gpu_threads_conf" : [ { "index" : 0, "threads" : 17, "blocks" : 60, "bfactor" : 0, "bsleep" : 0, "affine_to_cpu" : false}, ], it works now...

aeh the 8 and 100 ofcourse - copied from wrong config

just adding for reference the KB-Article from gocardless with further information concerning this topic https://bankaccountdata.zendesk.com/hc/en-gb/articles/11529646897820-internalTransactionId-a-unique-transaction-ID-now-generated-by-GoCardless