I have the same message on my SCN a few times, maybe this is a bug?

I wanted to give back a bit to anyone in need. Great Game!
Below is a Guide I wrote based on some info via I gathered from The Combined Fleet HQ Discord.

Please let me know if any corrections!

The two factions have the following Fields (From what I see regardless of faction that makes the PBEM the ...

This is a good find, I would do as btd64 says.
This dev is on another level with numbers and abstraction; I just don’t believe they would allow this unless intended. The numbers from your post also make me think this is not intended, as well you pointed out the you can disband withdraw dated LCUs ...

I agree, to be clear when disbanding with enemy in the same Hex is it RSV you are disbanding or a combat unit?

If you have an enemy in your hex, if I am correct with understanding the manual, you cannot disband. LCU must be one hex away (not in a hex with an enemy). This helps stop the cheese.

For your example of a town under siege, disband would not be possible for two reasons.

Enemy in Hex and no ...

I am glad you asked!

This game has me hooked!

I have little play against the AI, but I think it has its place like you said. PBEM just has a fun hook waiting for your results and humans like to tick you. :D

I have played a lot of WITE2 but nothing else, I maybe watched a few games of WITP ...