It was a old bug which already appeared several times.
Just ignore those two 32-bit files.
Sometimes GOG fix them (aka remove those two files), but sometimes they just sit there as is.

Huh. Neat. Time to revisit Strafe now I guess.

Low Magic Age

Low Magic Age has been updated to Version: 0.91.26.1 (Offline installers also updated)

No Changelog

All the games reported - ITTA, The Great Perhaps and Heroland - now have their forums and are linked to their game pages. Thank you both again for reporting it.

As for the missing update flags, it has already been reported. If i have any new info i'll let you know.

INSOMNIA: The Ark

Patch 1.7 (13 May 2020)

The update brings major bug fixes and new in-game content — a pack of random encounters that require quick thinking and the right skills to overcome them. Completing these encounters will reward players with unique weapons and armour.

You will come across fierce enemies as well as… a little girl. Be careful around her as the little one is followed by a formidable protector.

And here’s the full list of fixes for bugs that you will (hopefully) never encounter again:
Locations

Added the missing quest key door in j27
Fixed the inability to view paintings inside the House of Zerden.
Enemies still present in Zone B27 in the quest At The Bottom despite combat being disabled. Their fury could barely be contained.
Removed the invisible wall in location d_p_d106_battle inside the building (the ‘Boiling point’ quest). Previously it appeared near the elevator entrance, preventing players from progressing further.
Patched a small hole in the floor in ‘Wild grove’. During self-isolation, we’ve decided to make some renovations — just like your neighbours.
Fixed the blocked exit point from location B-52\79s.
Removed the doorstep in ‘Bypass Road’ (d_p_stop). Now it’s a bit chilly though with the air blowing from under the door.

Gameplay !SPOILERS!

Fixed cutscene not starting after loading an autosave in the location of Clan Morakh if the player chose to follow the Church of Bea Kera.
!SPOILER! Fixed the game not ending if the enemies manage to kill general Tanaber in the quest ‘Not A Step Backwards’.
Fixed the ‘value’ count missing when trading. Blind trading is dangerous, kids!
Fixed the inability to kill Kevas with the help of the Red Band character in ‘Sulfur Geyser’ quest.
Fixed Maurits hitting the air and not attacking the player. On the second thought, he might have been nearsighted.
Disabled the ability to attack the Herald boss before the final dialogue with him. No more preemptive strikes!
Fixed the door to Zers Morakh being open even if the player chose to betray the clan during the quest ‘Revived Union’. These guys were way too welcoming.

Characters

Fixed dialogue with Zerden not starting automatically during the ‘Ghosts Of The Past’ quest.
Fixed dialogue with Gosp not starting automatically during the ‘Ghosts Of The Past’ quest.
Fixed the inability to give Morty the ‘Righteous Fury’ mask. It’s rude to refuse a gift, you know.
Fixed the idle animation cycle for Nerral in Monarch’s Base. The guy finally pulled himself together and calmed down.
Removed system info from the dialogue with Koposhun. He now speaks human.
Removed the skill check for the dialogue with Morty during the ‘Tyler’s Hideout’ quest.
Disabled the ability for your allies to kill children in ‘D-106’. This place will drive anyone insane.

Items

Added the missing effects to DELUXE backpack.
Added the missing ‘dismantle’ option for the ‘patient’s pants’ item.
Removed the chance to get 0 details from dismantling the ‘Whirlwind Grenade - - Launcher’, ‘Lans Hand Grenade Launcher’ and ‘Knuckle’
Fixed ‘Hammer’ and ‘Mallet’ dealing no damage from sprinting attack. Though, these instruments usually have other purposes.
Removed the iconless item from Zoey after killing her during the ‘Liquid Sky’ quest.

User Interface

Fixed the version number appearing the same as the release version.
Fixed the Esc button not working after changing the ‘Cancel’ button keybind in the settings menu.
Fixed the inability to interact with buttons in the main menu on 4k resolutions.

Graphics

Fixed lighting errors on the Global Map. The Ark is drifting ever forward, leaving the Sun behind.

Filament

Updated to 1.0.2725

(Galaxy & Offline Installer)

Changelog from Discord (Login required)

Could I send you a list of games with the missing achievement tag so that they can be corrected by the staff as soon as possible?

Sure.

Another tiny bug for Dying Light:
setup_dying_light_-_5th_anniversary_bundle_* have been renamed to
setup_dying_light_the_following__dlc_4_*.

The new filename is misleading and meaningless.

Do you know whether GOG support are working these days?

I have opened five tickets in the past month (April 14, 19, 22, 22, 26) and have not received any non-automated reply to any of them. All are still marked as "Open".

They are all bug reports, so not too urgent, but still, two to four weeks of no reply...

Can confirm - they are working.
I received some answers, but it takes so much longer than before...

Children of Morta
Galaxy only, so far
version 1.1.55.1

Changelog from Steam:
Hi there, Fam!

You've probably noticed that Steam is downloading some kind of update for Children of Morta. Don't be alarmed! It's just a simple Hotfix for the Setting Sun Inn Update!

Here's the list of changes:

Fixed the issue in NG+ where dungeon selector disappears after certain steps;
Fixed the issue where NG+ could not be started if the base game was completed before Hard Mode update was introduced to the game;

This Update is already available on Steam and GOG. We're releasing it soon (tomorrow, probably) on Xbox One, PlayStation 4 and Microsoft Store. We have to ask our Nintendo Switch users for more patience, though - due to additional certification the updating proces may take up to few weeks.

We hope you like the new NG+ content! Let us know what you think about the new cutscenes, quests and difficulty!

Stay safe!
Dead Mage & 11 bit studios

Anodyne has been updated to 1.6. No changelog here (yet?), but according to a post by the developer elsewhere.. Looks like we actually got a small warning about Mac and Galaxy here too.

Offline installers updated.

Filament

Updated to 1.0.2726

(Galaxy & Offline Installer)

No Changelog this time