“The bless tool was unable to set the current boot disk” message after installation

CPU: i7 9700k
GPU: Pulse RX580
RAM: G.Skill Aegis 16GB DDR4 16GISB K2
Motherboard model: Asus ROG Strix Z390 E-gaming
SSD: Samsung SSD 970 Evo Plus M2 NVMe
Audio Codec: SupremeFX S1220A
Ethernet Card: Intel® I219-V (Gigabit Ethernet)
OS: macOS Catalina 10.15.4 Beta 3
What guide followed: Vanilla macOS Catalina, Clover was configured by this guide

Hello, guys! I've decided to update my macOS Catalina 10.15.3 to 10.15.4 Beta 3 via System Update (because it fixes Plex, Netflix and other issues in Safari). After installation I got “The bless tool was unable to set the current boot disk” error message. System loads fine, but after installation I found additional boot "Install macOS from Macintosh HD - Data" entry in Clover (which i fixed by deleting install files on the drive left by installator).

And now I just wonder if installation was performed successfully? Did install manager finish all procedures or I have to check or fix something? Is it okay to get this message after installation?