6445S "not enough buffer space"

i purchased the 6445S from aliexpress…have been playing with the RDworks software (version 8.01.52)…6445S is version RDC 26.01.22…both pretty recent releases…i can communicate via usb or ethernet… my PC is windows 10 with 20GB of memory…

i am able to cut shapes…but cannot engrave a 1MB jpeg photo…i have processed it thru RDimage 1.4.01 …and then tried bithandler to try dithering and processing…they seem to process, but when i go to run the job i get…

error…“NOT ENOUGH BUFFER SPACE” on control panel…

the 6445S has 128mb of memory, so this shouldnt be a problem for a 1mb file…have tried sending usb and ethernet…with no success…

wondering if a parameter problem…acceleration?..speed? (i tried all speeds)…baud rate for my com3 is set for 115,200…have tried different user parameter settings…no luck….been on internet searching for a solution….for quite some time

i really dont know how to read how much memory the 6445S has…is it possible it is corrupt…I went to files on the control panel….and it is empty….havent tried formatting……yet

i have to be able to use the 6445S for photo engraving…

is there a user parameter setting (processing) i could use and try? or something else is amiss…