When homing module makes grinding sounds

When I try to home the module moves towards home, then grinds for maybe 5 seconds, homes, grinds, and then is OK. Here’s the code I get:

<Idle|MPos:0.000,0.000,0.000|FS:0,0|Pn:Z|Ov:100,100,100>
[AUTHOR: RenShen]
[MODEL: Ortur Laser Master 2]
[OLF: 137]
[DATE:01:15:16 - Apr 20 2020]
[VER:1.1f.20170801:]
[OPT:VZD,35,254]
Target buffer size found
ok
Homing
ok

I thought it might be my work area, so I reduced it both on the x and y axes by 10mm. Still does it.

Don Stacks

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