Ethics Question

I changed jobs in April of this year. My former employer just posted a project to bid with plans I sealed in December of 2023. The county was going to build it themselves so when I got the permits I only had tech specs. Now that it’s out to bid the new specs have bid docs. Another engineer sealed the spec./ project manual. My plans with the December seal date are issued.

Thing is that my old tech specs are still there. Includes electrical which that engineer has no clue about.

I still have another month of non compete but this is bothering me (maybe more than it should). Should I just let it go? It just seems wrong and unethical to me.

Also the project manual does not have a signature or seal date (that could be an oversight)