Black Resin V4 consistently poor prints and failures

[eaelec]

I’ve had a number of failures with black V4 and the root of the problem seems to be supports breaking off near the base. See this thread for some photos and discussion:

Increasing number of broken supports using black V4

It seems I am having to print 2 or 3 copies of some parts recently just to get one I can use. Here is the first example. Wheels missing or damaged because supports broke off a millimeter or 2 above the base. This always seems to happen on the driver side of the truck. These are always printed with the front bumper facing the wiper. [broke1]

I have never heard of Johnhue’s suggestion about shaking the cartridge, I’ll have to give that a try.