Kerbal Space Program

Incredible lag upon entering an area with any planted flags in the vicinity. Significant frame drop (estimated one frame every five seconds). Lag is so severe that controls are useless. Menu is popped up automatically, but it takes intense button-mashing for even just the highlighted option to change. Nearly impossible to select any option. If flags are near the launch site, significant loading times of almost five minutes are to be expected. Closing and reopening KSP is the only way to get back to the game. Potentially affecting core game and Making History, though not certain if it exclusive to either.

Video by a Discord friend who also experienced it. NOTE: he is on a more powerful console than what I have used to investigate this bug, so less lag is shown.

https://youtu.be/M8qlmfljedg

As you can see, everywhere but the area with the flag is perfectly fine and free from lag. However, he experiences long loading times simply switching to the craft. This is all the same for Xbox One, but more severe due to the weaker processing power the Xbox One provides.

TL;DR: 0.2fps lag spike caused by planted flags. If near launch site, long loading times are expected. Severe lag results in no control whatsoever, even with the pause menu, and a reboot of KSP is the required to get back to the game. Affects Xbox One and PS4.