I’m afraid none of the above domains are using the correct DS record yet. You need to update the DS records at your registrar with the values provided by Cloudflare.
They have stated it must be a Cloudflare issue, Saying it says signedDeligation and it has been applied.
I have tested all of them using dnsviz and they give errors apart from district36.au.
You can see that the DS record in your screenshot starts with 2371.
You can see here that the DS record that your registrar set for your domain starts with 257, and is also completely different otherwise:
dig +trace district36.com.au
...
district36.com.au. 3600 IN NS frida.ns.cloudflare.com.
district36.com.au. 3600 IN NS carlos.ns.cloudflare.com.
district36.com.au. 3600 IN DS 257 13 2 F6E12E600931A02E14F7767A2056466091FBA0FD1590B111F0B0346B 28C8D810
district36.com.au. 3600 IN RRSIG DS 8 3 3600 20240730151720 20240709141720 12489 com.au. KxkwYWnZsvYexJC+wnpGRQsQRCJBTvbyTfv4phW1vMySCxFTTwEOMNdE YwtVSb20o3dUlJeR8MEUua6mWCYebDSnbiWHLCEVezuHgEbsaQJ1vaWp wfvXZeHlN275JTJEqo1BeXfQ0xsqN1Y1OsVE+JqUhckqv1kNzDIFxuBu 6XY=
;; Received 318 bytes from 65.22.199.1#53(t.au) in 8 ms
Your registrar needs to update the DS record to the correct value for all 3 domains.
Edit: The domain in your screenshot is district36.au, not one of the domains you mentioned in your opening post. But the other DS records will also start with 2371.
That domain is actually set correctly:
district36.au. 3600 IN NS lilith.ns.cloudflare.com.
district36.au. 3600 IN NS elmo.ns.cloudflare.com.
district36.au. 3600 IN DS 2371 13 2 4FB2F55D53E2C0BF20D2FB5830004EF90B7E6C10C4FDB278B49F3864 9EA2F9E3
district36.au. 3600 IN RRSIG DS 8 2 3600 20240821075409 20240710062409 28089 au. fbXcol1sPLGiVoaNdRzW1MZmnNw+USLi+dVD4wLHd4uolfQba6V3pq0n YBuSdUOUEvqmCqU8AMaJFjsRNIWtb7l2SSjgWcmvZhlIHw7nDg/xRE2s WwPxpfLpkMrrf4cjkOlxJZbaLW4+dBvtqePgwjDZFpMDQs+KomYjVahR zzEz63lHWyQSvWeRw4KGdiYhum/ERtReG7LyAQ2824340tbxHjt8ImJ5 wC6KEdadVPvsXb/TOkEAqqRgwU+i0J+5J6mRpteJp5E4/nXUy7DsVIZa W/BhE79gJzn0YtyChEqT4lHmXzeFXgv6PR4CGLqcHI0HhIqyzkijI7OX VWQhsQ==
;; Received 437 bytes from 65.22.196.1#53(q.au) in 36 ms