Program failed to link

The workstation is RHEL running Firefox 45.1.1 on an NVIDIA Quadro NVS 440 (driver 304.xx), Cesium 1.19. When loading the application, there is a runtime error that states:

“Program failed to link. Link log: Statically used varyings do not fit within packing limits. (See GLSL ES Specification 1.0.17, p111)”

If there is any other info that is needed, please let me know and I’ll grab them.

Thank you.