Anyone else running into this particular error?

It's been this way for a few days now when searching for flights on certain routes - thought it might be an inventory issue as a result of SCS weirdness, but it still hasn't resolved itself. Get the specific error above on the website and a generic error on the app. Have tried multiple browsers, different phones, etc.

Looking at a few possible trips this fall/winter (specifically ANC-LAS, ANC-JAN, and ANC-ECP). Whenever I search any dates on ANC-LAS roundtrip or ANC-JAN roundtrip and select a paid F fare outbound, whenever I go to select the return I notice the outbound changes to "refundable main" and further selection of any return cabin fare, be it F or Y, results in the above error. Happens searching ANC-LAS as well as ANC-JAN, but does not happen on ANC-ECP. This is leading me to think it might be an inventory issue that got screwed up this past SCS? And it also only happens when selecting an F fare on the outbound. Selecting a Y or C+ fare does not result in the error.

Not really ready to book yet, but like to check fares weekly and will pull the trigger once an acceptable (preferably F) fare appears. It appears I could book one-ways without issue, but just more of an annoyance that anything else to not be able to view a roundtrip F fare.

(Note this is different than the common issue of search results returning F with C+ segments due to married segment inventory issues - those will at least allow selection - this issue simply errors out)

DL IT....