Tensions may still be present within the Brown Family from TLC's Sister Wives, as nearly no members of the family seem to be acknowledging a pretty important day for the family.

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Both Kody's first wife, Meri, and Robyn's son, Dayton are celebrating birthdays Jan. 16, but no one appears to be acknowledging the big day on Twitter-except for Robyn.

"Happy Birthday @MeriBrown1 and to my miracle Dayton! I love you both so much! It figures two of my favorite people have the same birthday!" she wrote on her account.

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And while Meri herself hasn't acknowledged her own birthday-neither have her husband or other sister wives, Christine and Janelle-and no one else has acknowledged Dayton either-which could be a sign that the family is once again dealing with some problems.

Fans saw the tempers flare in a huge way on the show's Jan. 11 episode, where Christine and Kody had a huge fight about his decision to meet up with an old friend who once publicly denounced the family's lifestyle. In that situation however, Christine's fellow sister wives came to her defense, and while they didn't necessarily agree with her opinion on the matter, they did all claim that they were supporting both Christine and Kody.

However, the lack of acknowledgement from the rest of the family for Meri's birthday seems to hint that something else could currently be affecting the family.

It wouldn't be the first time that a potential conflict was hinted at on Twitter by members of the family seemingly ignoring big moments for other wives or even one another's children. Christine's lack of acknowledging Robyn and Kody's son Solomon's birthday back in October also made some wonder if there were issues between the two-especially after the season 5 tell-all, which saw Christine walk out when the subject of Robyn and Kody having another baby came up.

Sister Wives airs Sundays at 9 p.m. on TLC.

Tags: Sister Wives TLC Reality TV