How long are you actually leaving it in the dye for? In the videos it seems you are just doing a very quick dip, I was of the understanding that it’s more like 15mins.

Are you going straight from anodising to dying after a rinse with distilled water?

If it isn’t accepting the dye, in my very limited knowledge I would say it can only be a few things - either the anodised layer isn’t sufficient (poor connection/insuffficient power supply/not long enough in the run), or the pores are too small

The size of the pore will depend on:
Solution Concentration
Solution Temperature
Current Density
Higher solution concentrations and temperatures give higher pore sizes, which are good for dyes
Lower concentrations and temperatures give smaller pore sizes and thicker harder coatings. Higher current densities give thicker films and cooling is necessary to keep the temperature constant.
.

What solution strength have you got and at what current per square foot are you doing it?