The Unity Mobile platform uses vertex animation or UV animation issues.

are precision issues, mobile platform development for a large number of performance of the GPU. Various unforeseen problems.

UV animations appear to stutter, solution, limit the range of Uvs. can only be mitigated.

When it comes to the use of _time, there is a big chance of problems. Whether using _time for UV vertices or vertex animations, there are basically problems with shader mode 2.0,fragment shader low precision on some mobile devices, especially older mobile devices.

The Unity Mobile platform uses vertex animation or UV animation issues.