Can you lock minecarts to be not able to move in Bedrock?
Solution 1:
Make a repeating always active command block with the command:
tp @e[type=minecart,r=2,c=1,x=5,y=10,z=15] 5 10 15
Replace 5 with the X coord, 10 with the Y, and 15 with the Z.
Let me know how that works for you, if it doesn’t work how you’d like I might have another idea.