How do i set up inverse kinematics for a roblox rig in blender?

i want to setup some ik for an r15 rig but when i use the blender pluging it doesnt work. it doesnt make it work properly it just make the foot move the whole leg. i used falcos tutorial on the ik but it still didnt work. could someone please help.

(Sorry for my bad english)
When setting up an IK constraint on a rig in blender first of all, import your rig (obviously)
You need the Roblox Blender plugin
And the Roblox rig Blender add-on

Next, Press N and this will show up
image

press RBX Animations on the left
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Now your rig is done! Next is the IK Constraints

Go to pose mode and select a bone

And on the left press “Create IK Constraints”
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Pressing this button will make a UI pop up, do not change the chain count or your rig will be buggy

And here, My right arm has now an IK constraint
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You can move the target around And the whole right arm will follow it

I hope this helped, you can message me on my Discord: MSA#3081

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I tried you’re tutorial and it theoretically worked, but practically it didn’t, my model gets buggy whenever I move part that has IK constraints…

here are some images