I don’t think you broke anything. In my opinion the problem is that the mixer has a switching operation and is not multiplying with a sine wave but with a square wave.
A square wave with a certain frequency is equivalent to the sum off a sine of the same frequency and a series of odd harmonics with diminishing amplitude.
For example, a square wave of 114 MHz is equivalent to a weighted sum of sines with frequencies of 114 MHz, 342 MHz, 570 MHz, 798 MHz, 1026 MHz, 1254 MHz etc.
As a result, without filtering you will receive not only the intended signal around 114 MHz but also signals around 342 MHz, 570 MHz, 798 MHz etc. In addition, it can be shown that for an IQ mixer the spectrum around every second odd harmonic is mirrored. In the example the signals around 342 MHz, 798 MHz, 1254 MHz are mirrored.
In your measurements if you use a LO frequency of 114 MHz and want to receive 113 MHz = 114 -1 MHz then without filtering you will also receive interfering signals from 342+1= 343 MHz, from 570-1=569 MHZ, from 798+1=799 MHz, etc. (342+1 instead of 342-1 because frequencies around 342 MHz are mirrored) .
At 115 MHz you receive interfering signals from 341 MHz, 571 MHz, 797 MHz
In your figures 343 MHz and 571 MHz matches with theory. 321 and 568 MHz do not match.
So, I suppose you measured at 341MHz and 569 MHz as indicated by your jpeg filenames.