Was W2 employee at LLC. Offered membership in LLC. Stopped withholding taxes. Rejected LLC membership. Employee again. Now have 1099 and W2 for same company. Now what?

I have been a W2 employee at an LLC for several years. I was offered "membership" in the LLC, to begin 1/1/18. The LLC stopped withholding anything from my pay check from 1/1/18 forward (aka I was paid gross, and I paid quarterly estimated tax payments to fed/state). I was on track to be a member of the LLC to receive a K1. However, for various reasons I elected not to become a member of the LLC and never signed any of the documents or anything changing my status. The company reverted back to withholding taxes, etc from my paychecks around July 2018. For the tax year 2018, I then received a W2 for the second half of the year, and a 1099-misc for the first half. 

I do not believe it is accurate that I received a 1099-Misc as "self-employed" for the first half of 2018.  Nothing else was formally done to change my employment status; I was just receiving gross paychecks instead of net.  Was I considered self-employed for the first half of the year for tax purposes? Someone else in a simular situation here told me they were going to file as though they were always W2 and try to manually convert their 1099 to W2 when filing (not get some new form, but populate turbotax without acknowledging one of the forms was a 1099).