I have the v0.68.2 where my colonists just freeze in place when they leave their workplace. When I click on them, it says:"Moving" but it doesnt show where they are moving. The issue is usually solved with time, but it is still irritating. It is a LIS colony. Im on Android and I am using ASUS ZenPad (some number came after it but I dont remember it).
It also doesnt happen to all colonists.
As a workaround you can turn off colonist rendering in the engine settings. Turning off rendering will also improve game performance as well.