Default Fastboot flash recovery invalidSize

hi guys i have a problem.. i was trying to flash multirom twrp 2710 via fastboot and it says failed REMOTE (invalidsize)

but worst is i was trying to change some update zip with normal twrp i changed recovery.img with new recovery.img from with multirom twrp img

and after booting to recovery i have lg logo and "Now ready!" fastboot working but cant flash recovery..

and i sometimes can boot into systemXD
i am unlockedetc and on pa-4,4 rc1

any suggestions ? thx for help

edit : do i need to change ecovery partition size?

edit: ok i flashed normal twrp 2710 and its working... but it has 8.5 mb mulitrom version have 11mb so it can be related to size but does earlier version of multirom was smaller?

edit: i didnt realise @Hid3away is banned .... daamn... @Adam77Root 's multirom twpr 2700 recovery working because it has 9mb seems recovery partition is set to 10 mb