M300 Dual and Z-Flex

Hey guys,

I was able to print some washers successfully using Z-Flex on a M300 Dual, but after the 2.1.1 firmware update it will no longer print, the material starts extruding and then gets thinner and thinner and then jams.

were there any changes that would explain why this is happening now? any ideas or different settings to try to get Z-flex to print again. I know it is not one of the supported materials yet but I was able to get it printing perfectly and now it won’t print at all.