@Zing you won't believe it but using one of the usb 3.0 ports did the job... i had one usb 2.0 port left and tried it all the time. the pen drive works there, the hdds don'`t...
just tried out the blue usb 3.0 ports and the hdd has been recognized in 9 out of 10 times... (once it wasn't, but i cannot figure out why)

@Salva_Davila
Okay, then it could be a bug that concerns more people and we can hope that someone from the team will read this.

thanks but how do i "b*mp kodi to 18.9"? you are right 18.8 is currently installed.
edit: sorry for the stupid quesiton, i see it will be updated in the next version. thanks

@Pitch64 what will be reseted? so what will I have to configure again because i have a lot of custom mappings for different games and so on

solved it... for all people with the same problem... go to recalbox\share\system... edit the config by changing global.ratio to 4/3 .
then restart your recalbox, after you have saved your config of course... now it works fine.

i was able to center the picture with

1. starting a game
2. opening retroarch options
3. going to main menu
4. change aspect ratio from custom to core provided

then, the game works centered... but saving the configuration in the main menu of retroarch doesnt help so that i have to do the steps above each time i start a game...

how do you save the aspect ratio setting for ALL systems that use retroarch?

i know it says "don't report it is not a bug" but on two recalbox systems (rp3 and rp4) the game does not work on the rp3 anymore. i tried the exact rom that works on rp4 or some other roms but it is always the same error.
any clue what i have to change or do? thank you

hello. as you can see, my games (no matter if snes, neogeo, ...) are shown with the bezels but the picture of the game is too large and misplaced. i guess it is a bezel problem because...

another problem is that N64 has no bezels anymore but the picture is centered and in the right size.

do i have to update my bezels to 8.1.1. somehow? before the update, everything worked fine.

Hello. Has anybody managed to play TH Strikes Back (thoop2) on Recalbox?
I got the message coprocessor bad, which seems a common error for this game but people say it should work on newer mame-versions. which mame version does recalbox have? obviously mame2003 is too old.

@pitch64 my fault, i had to update recalbox first. but now i am missing the bios... i am using a raspberry pi 4.

i am talking about this game: https://www.youtube.com/watch?v=y_jLKu_afI8

hello. I wanted to know where to put the rom of hotel mario in order to show up on recalbox. i can have the rom in chd format, or bin/cue (within a zip file)... i would try both but there is no cd-i folder on my recalbox. can anyone help?

thanks

why did i update? fb-neo games (street fighter 3, ...) crash occasionally, or don't boot (black screen, have to pull the plug)...

everything worked perfectly before.

can someone help? if the solution is to install everything from scratch i will never ever update anything again!

@roro21 thank you i will try that.