The extracted file is here btw:

* SPICE3 file created from ldo_amp_dp.ext - technology: sky130A

.option scale=5000u

X0 vs sky130_fd_pr__nfet_g5v0d10v5_N76Z7G_0/a_2093_n657# sky130_fd_pr__nfet_g5v0d10v5_N76Z7G_0/a_2093_n657# VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X1 vs vin vdn VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X2 vdp vip vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X3 vdp vip vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X4 vs vip vdp VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X5 vs vin vdn VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X6 vs vin vdn VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X7 vdp vip vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X8 vdn vin vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X9 vdp vip vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X10 sky130_fd_pr__nfet_g5v0d10v5_N76Z7G_0/a_2093_n657# sky130_fd_pr__nfet_g5v0d10v5_N76Z7G_0/a_2093_n657# vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X11 vs vip vdp VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X12 vs vip vdp VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X13 vdn vin vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X14 vs vin vdn VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X15 vs vip vdp VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X16 vdn vin vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
X17 vdn vin vs VSUBS sky130_fd_pr__nfet_g5v0d10v5 w=1200 l=200
C0 vdn vs 5.42fF
C1 vip vin 10.38fF
C2 vs vdp 3.78fF
C3 vip VSUBS 2.79fF

It looks like the issue lies with the dummy fingers at the ends of the layout which I've connected to the guard ring.