I have a feeling that
router ospf 1
no source-route external
is missing from the solutions? The 184.108.40.206/14 summary is done post redistribution into OSPF. Without the above command the Null route for 220.127.116.11/14 is installed locally on SW1 and is candidate to be reinstalled back into RIP
From the solutions.
<span class="code-bold">Rack1SW1#debug ip rip</span> RIP: sending v2 update to 18.104.22.168 via Vlan73 (22.214.171.124) RIP: build update entries <b><span style="text-decoration: underline;"><i>126.96.36.199/14 via 0.0.0.0, metric 1, tag 0</i></span></b> 188.8.131.52/24 via 0.0.0.0, metric 1, tag 0 184.108.40.206/32 via 0.0.0.0, metric 1, tag 0
This may not have broken anything but a good habit to get into.