jm1gteam Have you checked our examples?: EsotericSoftware/spine-runtimestree/4.1/spine-flutter/example
If you have not already done so, please first make sure that the examples work properly on your PC. Then replace the skeleton data used in the example with your own and see if it works. If your skeleton is displayed correctly with the example code, there must be something wrong with your code.
If your skeleton does not display well even with the example code, there may be something wrong with your skeleton data. In this case, please send us the skeleton data files that cannot be displayed by e-mail: contact@esotericsoftware.com