I am only able to print things with a small base on my Flashforge Finder. The filament does not stick to the build plate and moves all around. I am using PLA and I have painters tape on my build plate. My MakerBot has no problems but this printer prints almost nothing correctly.
Yes, i know that problem. Solved it by leveling the build plate at first. Must be done properly. Maybe try several times leveling and make some test prints.
make sure first layer sticks properly. After that use a glue stick. that can also help.