That is not how it works with INDI/Ekos and OnStep (4.24).
It does what you expect it to do.
I use the "Sync" function to compensate for the initial Goto errors, and the "Slew" to center the object perfectly before imaging.

One thought: do you have backlash in the gears?
In my case, there is backlash, and I got OnStep to compensate for it (~ 160" for RA, and ~ 30" for Dec).
If you have significant backlash, and you don't compensate for it, the motors will be turning for a while but there will be no movement, and could lead to symptoms similar to what you are seeing.

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