Tax Topic 152 is a generic message and all it means is the return is in processing somewhere. The path the return takes from the Received to Approved can be a long and winding road for some returns. The IRS once again has to verify your income, the credits taken on the return (including the RRC) , the taxes withheld and a host of other things. Some will require humans to review and as usual they are in short supply again this year so all you can to is sit and wait.
It would be nice if the WMR? tool had more detail on what is happening with your return but alas the IRS is working with old programming and the WMR? has not been overhauled since inception. See the roadmap that TAS puts out : https://www.taxpayeradvocate.irs.gov/get-help/roadmap/
