If you've seen bars at times inside that WMR tool, and if you've been given Tax Topic 152, you know they are working on your return. There's no trick to tweak it. Just be sure you are entering correct info each time as I described above. Since you know the tool found you originally, if it now tells you "not found" at times, and you know you are entering correct info, just try another time. That tool can be squirrely at times.
Did you read Tax Topic 152? It's a general article about possible reasons for delays and other general refund information.
https://www.irs.gov/taxtopics/tc152
If you had EIC or ACTC, that Tax Topic 152 says they expect folks to receive refunds the first week of March if there are no other issues with the return.
