Oh, that would make sense.
My Sam (who is also Exhibitionist) did remove her top once, said "oops" and put it back on. I suppose she might decide to stay exposed sometimes.
Oh I don't know then :(
Since I wrote my previous message, my clothes unexpectedly changed a few times to what seem to be the default color (the dark red color that clothes have in the UI) when walking around the apartment. Re-selecting the outfit in the wardrobe fixes it. I haven't seen clothes disappear for now.
I'm still early in the story though (I restarted from scratch after a long break) so I may have not yet reached the situations where these issues happen.
Since I had the same feeling about losing clothes and colors changing, I'll share what the reason was for me:
In the wardrobe, you can have two outfits for each category. The icon is split in two (left and right) and depending on where you click it will select one outfit or the other. By default, most secondary outfits are empty (naked). The icon is not very clear IMO and it's even less noticeable when playing on a phone.

After you perform an action, Sam may automatically switch to an appropriate type of outfit and can pick either variation.
So maybe that's what happened to you: Sam changed to a variation of the outfit that was empty or a different color than what you expected.
By the way, the underwear and stocking icons are also split in two so I kept thinking that I was losing my panties or bra depending on where I was clicking until I understood how it worked.
Very nice game. I liked the progression and the variety of endings.
For me, the most difficult ending to achieve was "The Red Trail" (5th mutation, no "safe room") which required more strategy in the final fight than the other routes. Only after I finally completed all the other endings and learned to focus on my strengths, did I manage to get it.
There was funny moment when I realized I know the place in the "Underground Facility" picture (Turda salt mine, in Romania) :)
I've been following your posts on Patreon and it was interesting to follow the development of this game. Congrats and thank you for releasing what I expect to be another masterpiece :)
I won't have time to play it until after the holidays but I'm very impatient to try it.
Otherwise, a few months ago, I wrote a very simple dress up game, for my personal usage, using the graphics from Princess Trainer. I'm thinking that I could share it with you and the community as a gesture of appreciation for your work (with your permission and if you're interested).
I love the game, thanks a lot for making it!
However, I had an issue when updating from 0.4.12 to 0.4.18 on Android:
The app name changed from "Course of Temptation" to "CoT" (which is less awkward if someone checks your phone so it's a good change). Because of this, I suppose, it didn't replace the old app so both versions were installed. I promptly uninstalled the old version and realized too late that it wiped all my saves before I transferred them to the new version.
I tried reinstalling the old version and, fortunately, it somehow managed to find some saves that were created within the last 24h. Those were not my most recent saves so I'm confused where they came from, maybe some automatic backup on my phone. Anyway, I'm saved but that was close.
I'm sharing this in case it happens to someone else. Putting a warning somewhere to always backup your saves before updating might be useful too.
Some other suggestions...
You said that you use Wine 1.6.2. That's an extremely old version of Wine (2014), even for your system. According to the builds available here, it should be possible to update to Wine 4.0.1 (released in 2019) on Jessie, which would fix a ton of bugs (e.g. this one which you encountered on another game).
You could also consider updating your OS: your version has reached it's end of life 3 years ago, and it seems newer versions of MX Linux still have very low hardware requirements.
NB: I don't recommend using the specific Wine builds that I linked. I have no idea if they are right for you or how applications are installed on your Linux distribution. However, they show that it's most likely possible to update your Wine install.
As far as I know Gobliiins 5 uses a recent version of AGS (https://www.adventuregamestudio.co.uk/) which requires at least Windows Vista, so it's probably impossible to run it with Wine simulating XP. Since Vista is older than your computer, maybe you can set up Wine to Vista-level compatibility and try again.
As for ScummVM, it works fine on my computer with an even older GTS 450, but I'm on Windows and I haven't tried this game. ScummVM devs don't provide builds for Jessie, though. Maybe it's still possible to compile your own, You can get some help on ScummVM's forum, Discord server or IRC channel.
If running a Linux build of ScummVM on your machine is really not possible, you could try running the Win95 build of ScummVM in Wine and hope AGS is supported on this build.
Alternatively, it might be possible to use the Linux port of the AGS engine although its requirement may be too high for Jessie (https://github.com/adventuregamestudio/ags/blob/master/debian/README.md).
Anyway, I don't know if any of this will work but, if your current setup fails, it's worth considering.
You should try running it with ScummVM ( https://www.scummvm.org/ ), the demo has been reported to work with version 2.7.1
No need for Wine.
No worries for the save file, I've just found a backup of my save from a month ago that I had no idea I had, so I haven't lost too much after all :)
Anyway, I mostly wanted to warn you about the issue before someone else could lose their save. Since you've released a new update, it's all good.
Also, the shorter news text works fine and it's great that you made the VIP code work better :)
Thanks for clarifying about the Halloween deck and for answering my message!
After updating from the itch app, I lost all my save data and my profile is now level 0 and named KAZ01. Maybe the update mistakenly included a savefile which overwrote mine? I guess I should have made a backup before updating... ^^'
Another issue I noticed is that the scrolling text gets cut before the end (it stops at "...were added to said Extra De"). The framerate also drops a lot when it reaches this part of the text for some reason, and gets back to normal once the scroll restarts. Finally, the VIP code which is usually at the end of this text is no longer visible because of that.
Speaking about the VIP code, I think users should be able to enter it with any capitalization. At the moment, I think it only works if written in lowercase. To fix that, just convert whatever the user entered to lowercase before comparing to the valid code.
The unlocking message also still mentions the VIP banner, although it's been removed with this update.
Otherwise, it seems that the Halloween deck is gone. Was it merged with another deck?
Beside those issues, it's a good update :)