efiling form 4852 (Substitute W-2) (foreign pension)

Can my tax returns be e-filed if form 4852 (W-2 substitute) (for foreign pension) is included?  

I am seeing conflicting comments about this.

I would rather pay taxes on my pension than have to paper file with form 8833 again.  I paper copy mailed my 2019 taxes last September and they still have not been processed.  

Thanks!