I haven't looked at the MS state house, but I suspect that I would find the same phenomenon were I to do so (which I won't).
The one thing that troubles me is that the entirety of the GOP Caucus in MS has not a single Black member (I counted only one “minority”, a lady who is Native American). Although this is the first legislative session since Reconstruction to have a GOP majority, one wonders at what point Black leaders will realize the folly of placing all their eggs in one basket, a likely shrinking Democrat minority. I noticed numerous Black seats the Dem incumbents didn’t even face a GOP challenger.
Of course, that’s not unique to MS. In TN, where the Dems have shrunk to just 27 out of 99 seats in the House, all 14 Blacks in the House are Dems (and make up a 1 seat majority in the caucus, 14-13, although a White guy is still the Minority Leader). 1 Black member, John DeBerry, is a DINO, however, but would probably have difficulty being elected if he switched parties (although a Black Dem from Knoxville in the ‘80s switched parties and actually did manage to win reelection as a Republican before being defeated 2 years later).
TN, unlike MS, also has the situation where virtually all Blacks are packed into urban areas. Of the 14 districts, 1 is in Knoxville, 1 is in Chattanooga, 2 are in Nashville, 9 are in Memphis, and just 1 is in a rural area east of Memphis including part of Jackson (so even this one is part urban). MS has huge swaths of Black majority areas in the rural parts (especially the MS River counties).