I recently answered a question using the following code
$$\begin{array}\mathbb P\Big(X = \mu+\frac12\left(\gamma+\sqrt{4\kappa-3\gamma^2}\right)\sigma\Big) &=& \dfrac{\sqrt{4\kappa-3\gamma^2}-\gamma}{2\sqrt{4\kappa-3\gamma^2}(\kappa-\gamma^2)} \\\mathbb P\Big(X = \mu\Big) &=& 1-\dfrac{1}{(\kappa-\gamma^2)} \\\mathbb P\Big(X = \mu+\frac12\left(\gamma-\sqrt{4\kappa-3\gamma^2}\right)\sigma\Big) &=& \dfrac{\sqrt{4\kappa-3\gamma^2}+\gamma}{2\sqrt{4\kappa-3\gamma^2}(\kappa-\gamma^2)}\end{array}$$and saw a difference in the $P$ and $\mathbb P$ at the start of the first line of the array compared to the second and third, looking like this trimmed image
In full
$$\begin{array}\mathbb P\Big(X = \mu+\frac12\left(\gamma+\sqrt{4\kappa-3\gamma^2}\right)\sigma\Big) &=& \dfrac{\sqrt{4\kappa-3\gamma^2}-\gamma}{2\sqrt{4\kappa-3\gamma^2}(\kappa-\gamma^2)} \\\mathbb P\Big(X = \mu\Big) &=& 1-\dfrac{1}{(\kappa-\gamma^2)} \\\mathbb P\Big(X = \mu+\frac12\left(\gamma-\sqrt{4\kappa-3\gamma^2}\right)\sigma\Big) &=& \dfrac{\sqrt{4\kappa-3\gamma^2}+\gamma}{2\sqrt{4\kappa-3\gamma^2}(\kappa-\gamma^2)}\end{array}$$
What might have caused this?